Merge "NdkMediaDrm: send provision event with 0 data" am: facb434d am:...

Merge "NdkMediaDrm: send provision event with 0 data" am: facb434d am: f36125fe am: c0bf3358 am: ac9341fa am: 9d846926

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2157776



Change-Id: I138e0e7c43adf3f81fb4edccf17fefb0960c6e2f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>