Merge "libmediadrm: add details to exception message" am: 031923a0 am: 3fe225e5 am: 6b9d2976

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2359939



Change-Id: I1b9d7d76e6dad0e279afa3d4ff1558859b68d7e8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>