Merge "[a11y] Fix TalkBack readback on adb qrcode fragment." into rvc-dev am: 23040a3b2b am: b56a1dde4c am: 4b5d5901ec am: 7150504d0e am: 8daf3a9ce5

Change-Id: Iac084bff730bd7cc062659862e40091bb00aa615