i9500: Add missing mobicore file to proprietary-files

Change-Id: I32c086ec60d8ab67dc8fa3b6f2413e4880970d6b
Signed-off-by: NBruderman <nbruderman@gmail.com>
i9500: Add KeyDisabler class

Change-Id: I831d66c0f403dc27d811efa0a4e0e41b499cd538