Merge "Cleanup: use shared apex_key" into main am: 6693205f17 am: 70338b35b9 am: 8ac3c1c801 am: 3e3b89fd74 am: be711c3a9b

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2780311

Change-Id: I0f3067abbf86d0528d9fc2c712d918e8591ee35e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>