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

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



Change-Id: I8243d5f525872b72076510402a5e77e1ec326a92
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>