Add support for Hardware Rotation Lock Switch by using RotationSwitchObserver
from Pawit Pornkitprasan

Change-Id: I39ab497cff1925343bd00b7cb3e3263ce37ab066
Camera: add additional ISO modes

Change-Id: I3460c3de4cbef467430673146a9ddb2fdc8f5032
Merge "Add support for Hardware Rotation Lock Switch by using RotationSwitchObserver from Pawit Pornkitprasan" into android-4.4
Merge "Camera: add additional ISO modes" into android-4.4
Merge remote-tracking branch 'omni/android-4.4' into android-4.4