[automerger skipped] RingtoneManager: verify default ringtone is audio am: 377144b6 -s ours

am skip reason: Merged-In I3f2c487ded405c0c1a83ef0a2fe99cff7cc9328e with SHA-1 ae281971 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21027192



Change-Id: I8825203c9d34be96c61f2b278abcc711905922e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>