m7: PA bringup for Htc One Gsm Variants

Signed-off-by: houst0nn <houstonn@gmail.com>
m7: Use carrier overlays for ATT/TMO LTE APN

Change-Id: I841f9bb89ccd4273cc967de72f81df1d17515d6a
m7: Update kernel dependency

Change-Id: Ia517e05beb8553833ece61dc6c179fb0539d87a2