Merge "Add drm clearkey APEX" into main am: 66c4eddb am: 5f45216c am: f79205d9 am: e662994c

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2752146



Change-Id: I4005087858b3f7b932f5b0f453eca7256573006c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>