CameraService: Fix missing torch state callback

In case HAL process crashes, addStates() should still send torch state
callback to the app if observer is registered.

Test: Kill HAL process and observe Flashlight icon in quicksettings
Test: Camera CTS
Bug: 117949686
Change-Id: Icee1891ef3993ebb0e7eed2dc281db8cd6106e84
2 files changed