sdm: Add support to query display port information.

1. Add binder and display interface to query display port information.
2. Add permission for audio client to use display services.

CRs-Fixed: 1044314
Change-Id: I67a9549cd6e01e421534dcb139a2e39672873775
diff --git a/libqservice/IQService.cpp b/libqservice/IQService.cpp
index d47f2e9..e1c5219 100644
--- a/libqservice/IQService.cpp
+++ b/libqservice/IQService.cpp
@@ -92,6 +92,7 @@
             callerUid == AID_GRAPHICS ||
             callerUid == AID_ROOT ||
             callerUid == AID_CAMERASERVER ||
+            callerUid == AID_AUDIO ||
             callerUid == AID_SYSTEM);
 
     if (code == CONNECT_HWC_CLIENT) {