Eric Chiang authored Jan 17, 2019 and Christian Boltz committed Mar 31, 2020

This change updates parser/Makefile to respect target dependencies and
not rebuild apparmor_parser if nothing's changed. The goal is to allow
cross-compiled tests #17

 to run on a target system without the tests
attempting to rebuild the parser.

Two changes were made:

* Generate af_names.h in a script so the script timestamp is compared.
* Use FORCE instead of PHONY for libapparmor_re/libapparmor_re.a

Changes to list_af_names are intended to exactly replicate the old
behavior.

Signed-off-by: Eric Chiang <ericchiang@google.com>
(cherry picked from commit cb8c3377)