Merge "Cleanup: use shared apex_key (wifi HAL APEX)" into main am: de82b61de8

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2780370

Change-Id: If0f4b7a910885967c6a63082f7c5a76f6af154a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>