(see below) Various updates + GPS fixe:
* Fix GPS fix
* Fix FM radio
* Sensors starting up (needs probably more config)
* Create persist dir for sensors

Change-Id: I586dad1ea0c738bffe26f418d7af383c7e1567c9
Update android_filesystem_config.h

Merge CM upstream:

IMS-VT: Define IMS group.
system: core: Add Sensors group
core: Correct the sensors UID