Clear extra QS tiles on configuration change

In the previous commit 1be9822049bb13ec57ae6956da180e9250e3724d, I forgot
to clear the extra tiles from the QSPanelController. This caused the
missing QS tiles on some configuration changes.

Test: Manually with foldable
Test: QSPanelControllerBaseTest#setTiles_differentTiles_extraTileRemoved
Flag: None
Fixes: 318182695
Change-Id: I5e09b1010feb35879a99b7da2e34827233143ce7
2 files changed