Revert "Turn off BLE, GATT, and SMP of Bluetooth stack"

This reverts commit 67b7e3ac6f697f37b709a403dbe82d7ec6a83e55.

Enable BLE, GATT and SMP for Nexus 7 2012 grouper and tilapia

Change-Id: I640b3b76a341efc98d1ed69b1dc60425cdc0070b
Electron Beam Fix

This merely carries forward the existing commit, by Erwin Pannecoucke,
which currently resides on the 10.1 branch. 
When enabled....the electron beam screen-off animation functions properly, on grouper. 
Without this commit....it does not.

Change-Id: Ieac7f633d6203802dfe1aa2615042b1eb6901bfa
Merge remote-tracking branch 'cm/cm-10.2' into HEAD
PREBUIILT? WHO DOES THAT?

Change-Id: I15c1c8c774b2f82ffa25aca9caf5e90ea78d32df