Merge "Add ARMv9.2-a arch option." into main am: b379955f

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3255916



Change-Id: I38a8a9a214f4e3f22a9665591eb4f723f72889b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>