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 branch 'cm-10.2' of https://github.com/CyanogenMod/android_device_asus_grouper into DJL10.2