Add display.qservice

display.qservice has been removed from public SE policy
because it's a Qualcomm-specific service.
Add it back where it belongs.

Test: builds
Bug: 63391760
Change-Id: I9d13244385f03d8dc416b3ac20ed2423b6cba6ad
diff --git a/sepolicy/service_contexts b/sepolicy/service_contexts
index a809ae0..bebb493 100644
--- a/sepolicy/service_contexts
+++ b/sepolicy/service_contexts
@@ -1 +1,2 @@
 tv_remote                                 u:object_r:tv_remote_service:s0
+display.qservice                          u:object_r:surfaceflinger_service:s0