am 40566375: am 99b3fc5d: Camera3: Only add faceDetect metadata when necessary
am 40566375: am 99b3fc5d: Camera3: Only add faceDetect metadata when necessary

* commit '405663750506dc1c4397e0b3732bffc43b2f4518':
  Camera3: Only add faceDetect metadata when necessary

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