Merge "Add a new string for a migration tooltip of Accessibility floating...

Merge "Add a new string for a migration tooltip of Accessibility floating menu." into sc-dev am: 29ab8425 am: 6469283e am: 36c6359e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14950061

Change-Id: I8856a3c6833eeb8881d1700114faacb96917dff4