Increase kFastTrackMultiplier from 1 to 2

Change-Id: I158f147295eebcea96e4047d7618069bc48bdd7d
Merge "Increase kFastTrackMultiplier from 1 to 2" into cm-11.0
Merge remote-tracking branch 'CyanogenMod/cm-11.0' into cm-11.0