[automerger skipped] RingtoneManager: verify default ringtone is audio am: 0a4792b6 -s ours

am skip reason: Merged-In I3f2c487ded405c0c1a83ef0a2fe99cff7cc9328e with SHA-1 b8c2d03b is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21027271



Change-Id: Ibd3bdaaf70beb4467941cd0cd0d5e0fa3da40722
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>