SystemUI: Add RECORD_AUDIO permission

This is needed for screenrecord audio support

http://vaniraosp.goo.im/#/c/9866/

Change-Id: I5af3cbe31f182c8b5cf1633aaf8a16db2856a425
Signed-off-by: Dan Trifan <jimsth@gmail.com>
Merge "SystemUI: Add RECORD_AUDIO permission" into kk44