Merge "Unmute the mic toggle for emergency call" into sc-dev am: 4c8e4cdc...

Merge "Unmute the mic toggle for emergency call" into sc-dev am: 4c8e4cdc am: 3b4f98c3 am: 14a9767e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14344133

Change-Id: Ide40665586d18bb7d38717b0d5636d9d508df071