KVM: arm64: Rebase for RHEL 9.5 - part 1

JIRA: https://issues.redhat.com/browse/RHEL-31215
JIRA: https://issues.redhat.com/browse/RHEL-31553
JIRA: https://issues.redhat.com/browse/RHEL-36279
CVE: CVE-2024-26691

Testing: basic tests on bare metal and on a VM, virtualization tests

Rebase kvm-arm for RHEL 9.5 to include upstream changes up to v6.9-rc.

V1->V2:

• rebased to c9/main
• pulled in a couple of doc and kvm selftests patches

V2->V3:

• added 0c12e6c8267f KVM: selftests: Ensure sysreg-defs.h is generated at the expected path

V3->V4:

• rebased to c9/main
• removed some patches with dependencies to other subsystems

V4->V5:
added backports of:

• ea3689d9df50 KVM: fix kvm_mmu_memory_cache allocation warning
• 4c36a1567388 KVM: arm64: Ensure target address is granule-aligned for range TLBI
• 6ddb4f372fc6 KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()
• 40099dedb4a8 KVM: arm64: Do not re-initialize the KVM lock

Signed-off-by: Sebastian Ott sebott@redhat.com