Camera3: Report correct flash mode and flash state
Camera3: Report correct flash mode and flash state

Report flash state unavailable if there is no flash on camera.
Report correct enum for flash mode.

Bug: 13681666
Bug: 13083390
Change-Id: Ifa5efe6a104616b6e6301e9ac604ef63453f5c89

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead