Add Motorola EMU audio dock jack sensing support

Don't route to dock output just because the device is docked.
Let the actual jack presence to control it.

Change-Id: I4066d08b1aa58ead39aad9410b9dd71624776187
KeyguardViewMediator: Play lock screen sound sooner

When the screen is locked, there is a long pause before the lock
sound actually plays.

This makes that sound happen much sooner.

Also modified Lock.ogg slightly to remove the initial silence.

Change-Id: Iede7a5d22291d1ada98800d2b380c255547df61d
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2