Add Sprint defualt RIL properties

Change-Id: I9bf94393b50c49eedc0780dda1559302e6425eb5
M8 uses rt5506 headphone amplifier

Change-Id: Id8c148021b6581bc0723972b919fbe21deca2b65
Merge commit 'refs/changes/65/63665/1' of http://review.cyanogenmod.org/CyanogenMod/android_device_htc_m8 into kitkat
Merge branch 'kitkat' of https://github.com/LiquidSmooth/android_device_htc_m8 into kitkat