Retire gralloc from sepolicy/file_contexts

gralloc was replaced with android.hardware.graphics.

Bug: 152554068
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Merged-In: Icd4979089bc449cb1246b6fcb91c86d018f51cc4
Change-Id: I7286dbaeebf2466a0ae67d892579b7b3ae49a3f3
1 file changed