Camera2: Add flash.available tag with new metadata spec
Camera2: Add flash.available tag with new metadata spec

Bug: 12957430
Change-Id: I7c82a7821606dc95310000ea7ea4230454b69403

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