Restore missing line

mListening = listening; had been accidentally removed. Restore it for
proper behavior.

Expanded test to prevent future regression.

Test: atest BooleanTileServiceTest TileServiceTest
Test: atest QSPanelTest
Fixes: 156503401
Change-Id: I0f182777ef485fb7d077ada53189065adaf44f1c
2 files changed