Merge "Don't update volume if volume level is same as current device volume."...

Merge "Don't update volume if volume level is same as current device volume." into rvc-d1-dev am: 2eceffa8

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Bluetooth/+/12123283

Change-Id: Ia1fd283aed5459a82a1a0c2227e819b97838dcd0