Apply the avrcp volume when switching stream context

Since we are applying the new volumes in the native side as well we need
to make sure that the avrcp updates are sent out from AudioService

Test: repro steps in bug
Bug: 379009970
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:fc80ddd9dbba8aed862a68beb6d5996737b3ff3b)
Merged-In: I3f26ff9069fe1c80146352d0d1fb57a31037d873
Change-Id: I3f26ff9069fe1c80146352d0d1fb57a31037d873