audio: Move frame counter to StreamContext am: 1eedc130e8

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2674339

Change-Id: I93f722aa57d7d09bdef0f24613fd64b09ddbd347
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>