Update the GPS tile to use the appropriate location modes

With 4.4, there were new location modes this tile did not support
Update it to turn the GPS on/off without changing the network-based location
option, and use a new icon for battery saving mode.

The tile will now either toggle between high accuracy and battery saving,
or location off and device sensors only.

Change-Id: Ifdfb9832c77671ab1f0c415ea2c25dfee2888578
Merge branch 'cm-11.0' of git://github.com/CyanogenMod/android_frameworks_base into cd-4.4