[1/2] Base: fix ActiveDisplay for WifiOnly Devices

fix http://jira.omnirom.org/browse/OMNI-637
also fix for devices with unsupported Proximity sensor and Light sensor

Change-Id: I346d4ed0ca02c6f8a6da1f3bf1de59ac9179d7b7
Merge "[1/2] Base: fix ActiveDisplay for WifiOnly Devices" into android-4.4
Merge remote-tracking branch 'omni/android-4.4' into android-4.4