Merge "Cleanup: use shared apex_key" into main am: a232f9f196 am: 3eac152336

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2780369

Change-Id: Ia6ef29dfb4a7d34cf551616a45cd43ed5e938d33
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>