[automerger skipped] Re-enable volume control for non-grouped devices am:...

[automerger skipped] Re-enable volume control for non-grouped devices am: b7f52f44 am: 8092f8f5 -s ours

am skip reason: Merged-In I7740d78f3a7dca62d64e6cf7b8c9ffa1578c8e74 with SHA-1 f68e7fb4 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16214442

Change-Id: Ibb45335eab3f68b578adec8eaa917cc6f64a79fc