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
Merged-In: I8e220329b6c3fdc210703092af947ea1d3b25865
Change-Id: I8e220329b6c3fdc210703092af947ea1d3b25865
diff --git a/sepolicy/service_contexts b/sepolicy/service_contexts
index be2ef33..e8749c5 100644
--- a/sepolicy/service_contexts
+++ b/sepolicy/service_contexts
@@ -2,3 +2,4 @@
 cneservice                                u:object_r:cne_service:s0
 qti.ims.connectionmanagerservice          u:object_r:ims_service:s0
 vendor.qcom.PeripheralManager             u:object_r:per_mgr_service:s0
+display.qservice                          u:object_r:surfaceflinger_service:s0