Merge "Replace #apex with #systemapi" am: 1cca540feb am: 2a9c778583 am: 2bb284308a am: eb0c7481d9

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2155621

Change-Id: Ic742ac34dc5b67a48c2574be65c898f155ff3266
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>