Enable Bluetooth 4.0 (BLE) for tuna-based devices

 - Needed to:
     http://review.cyanogenmod.org/46543
     http://review.cyanogenmod.org/46989

Change-Id: If299d291a401ddeff17b6d0db5b2df1059ea3a18
ajust auto brightness

Change-Id: I50449f85ed2ef64343d648766c90509931c759fe
set NTP_SEVER in gps.conf

Change-Id: I8cfeb2f5960cea40e61dbdffd4aa3879dd3b8fc2
Revert "set NTP_SEVER in gps.conf"

This reverts commit 2fcf724ae4249dbd277d81139399b52bc9da7e22.
Remove audio_effects.conf

Change-Id: Iafccb00e7a01480e557a844474dccb358fa3fa8e