fix wifi thanks to rhcp & zachf714
Enable NEEDS_VECTORIMPL_SYMBOLS which is needed for the cam.
Fixes camera after Dhackers core merge.
g2: Change /dev/diag ownership to radio:radio

In order to log vendor RIL logs, diag must have radio permissions.
diag shouldn't world readable.

Change-Id: Ic872ae1a24accac330bde5f2338bb1a3d74230d6
HACK: Disable secure discard
 * Secure discard is causing wipes to take insane amounts of time.
 * Enable this workaround until the problem is sorted.

Change-Id: If9bbb27fd5476a160e9d7e8b29ab20a851410ff7