Merge "Announce scaled value for font scaling seekbar in Talkback" into udc-dev am: 80d1f08c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21647983



Change-Id: I4245fd673fff0f57b54c02ab95728c151032672e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>