FM Radio: do not try to change thread priority

The FM Radio services try to change the current thread when
instantiated, for unknown reason. This actually ends up changing the
priority of SystemServer's main thread. Probably a bad idea. This is
the cause of the various glitch fallout after the FM Radio merges.

Change-Id: I292aff3380c717ff1bc7d45f6303c0d330ef642d
Merge "FM Radio: do not try to change thread priority" into jellybean
Add support for multipress on qwerty keyboard

Change-Id: Ia322d73523fb35da782b5989888209d1b0ee80b2
Merge remote-tracking branch 'upstream/jellybean' into jellybean