Camera2: Don't try to cancel focus messages when preview stops

Change-Id: I3dc4762de2b321f3d01d6d6c07ec5fba33fb90e5

Conflicts:
	overlay/packages/apps/Camera2/res/values/config.xml
Enable hardware keys enable/disable through overlay
i9300 - allow lockscreen rotation
Enable Smart Cover
InCall: Fix mute button

Change-Id: I08d5f4d2758435960bbdf658384632ed5d449741

Conflicts:
	overlay/packages/apps/Phone/res/values/config.xml
Revert "Enable hardware keys enable/disable through overlay"

This reverts commit 434e99b8bd764317e7d5ae19fa64cc12626dc776.