tests/acceptance: Skip slow quanta-gsj U-boot+Linux test

The 'arm_quanta_gsj_initrd' test is timeouting on GitLab CI:
https://gitlab.com/philmd/qemu/-/jobs/745483978#L846
and also sometimes on my workstation, so proceed as with
the other slow tests: do not run it by default.
The test can still be run setting the AVOCADO_TIMEOUT_EXPECTED
environment variable.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Havard Skinnemoen <hskinnemoen@google.com>
Tested-by: Havard Skinnemoen <hskinnemoen@google.com>
Message-Id: <20200918143355.153522-1-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
84 jobs for acceptance-next in 59 minutes and 9 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Containers
passed #746077399
amd64-centos7-container

00:02:39

passed #746077400
amd64-centos8-container

00:02:26

passed #746077401
amd64-debian10-container

00:02:32

passed #746077402
amd64-debian11-container

00:02:09

passed #746077403
amd64-debian9-container

00:02:27

passed #746077407
amd64-fedora-container

00:03:34

passed #746077411
amd64-ubuntu-container

00:02:46

passed #746077409
amd64-ubuntu1804-container

00:02:48

passed #746077410
amd64-ubuntu2004-container

00:02:56

passed #746077406
cris-fedora-cross-container

00:02:28

passed #746077397
docker-edk2

00:01:27

passed #746077398
docker-opensbi

00:01:26

passed #746077408
i386-fedora-cross-container

00:02:30

passed #746077404
xtensa-debian-cross-container

00:02:24

 
  Containers Layer2
passed #746077416
alpha-debian-cross-container

00:02:36

passed #746077419
amd64-debian-container

00:02:45

passed #746077417
amd64-debian-cross-container

00:02:42

passed #746077418
amd64-debian-user-cross-container

00:03:10

passed #746077414
amd64-debian9-mxe-container

00:02:23

passed #746077420
arm64-debian-cross-container

00:02:47

passed #746077421
arm64-test-debian-cross-container

00:02:19

passed #746077422
armel-debian-cross-container

00:02:49

passed #746077423
armhf-debian-cross-container

00:02:45

passed #746077424
hppa-debian-cross-container

00:02:36

passed #746077425
m68k-debian-cross-container

00:02:35

passed #746077428
mips-debian-cross-container

00:02:49

passed #746077426
mips64-debian-cross-container

00:02:25

passed #746077427
mips64el-debian-cross-container

00:02:40

passed #746077429
mipsel-debian-cross-container

00:02:50

passed #746077430
powerpc-debian-cross-container

00:02:37

passed #746077431
ppc64-debian-cross-container

00:02:30

passed #746077432
ppc64el-debian-cross-container

00:02:53

passed #746077433
riscv64-debian-cross-container

00:02:30

passed #746077434
s390x-debian-cross-container

00:02:46

passed #746077435
sh4-debian-cross-container

00:02:36

passed #746077436
sparc64-debian-cross-container

00:02:31

passed #746077437
tricore-debian-cross-container

00:02:34

 
  Containers Layer3
passed #746077438
win32-debian-cross-container

00:02:50

passed #746077439
win64-debian-cross-container

00:02:41

 
  Build
passed #746077488
build-clang

00:41:15

passed #746077495
build-crypto-old-gcrypt

00:14:36

passed #746077494
build-crypto-old-nettle

00:12:57

passed #746077496
build-crypto-only-gnutls

00:13:10

passed #746077490
build-deprecated

00:12:34

passed #746077482
build-disabled

00:26:33

passed #746077440
build-edk2

00:39:22

passed #746077441
build-opensbi

00:00:57

passed #746077491
build-oss-fuzz

00:39:24

passed #746077481
build-system-centos

00:21:21

passed #746077477
build-system-debian

00:28:44

passed #746077479
build-system-fedora

00:26:13

passed #746077475
build-system-ubuntu

00:28:25

passed #746077484
build-tcg-disabled

00:23:19

passed #746077492
build-tci

00:35:19

passed #746077486
build-user

00:36:19

passed #746077446
cross-arm64-system

00:48:14

passed #746077447
cross-arm64-user

00:44:06

passed #746077442
cross-armel-system

00:46:55

passed #746077443
cross-armel-user

00:39:48

passed #746077444
cross-armhf-system

00:47:37

passed #746077445
cross-armhf-user

00:40:17

passed #746077448
cross-mips-system

00:47:45

passed #746077449
cross-mips-user

00:45:43

passed #746077461
cross-mips64el-system

00:47:30

passed #746077462
cross-mips64el-user

00:44:22

passed #746077457
cross-mipsel-system

00:51:21

passed #746077460
cross-mipsel-user

00:44:16

passed #746077464
cross-ppc64el-system

00:46:46

passed #746077466
cross-ppc64el-user

00:41:03

passed #746077468
cross-s390x-system

00:40:41

passed #746077470
cross-s390x-user

00:38:22

passed #746077472
cross-win32-system

00:42:36

passed #746077474
cross-win64-system

00:50:16

 
  Test
passed #746077504
acceptance-system-centos

00:19:35

passed #746077500
acceptance-system-debian

00:08:08

passed #746077502
acceptance-system-fedora

00:08:37

passed #746077498
acceptance-system-ubuntu

00:12:01

passed #746077506
check-crypto-old-gcrypt

00:10:39

passed #746077505
check-crypto-old-nettle

00:10:34

passed #746077507
check-crypto-only-gnutls

00:10:31

passed #746077503
check-system-centos

00:12:58

passed #746077499
check-system-debian

00:20:06

passed #746077501
check-system-fedora

00:13:56

passed #746077497
check-system-ubuntu

00:15:52