display: Add binder interface to pause/resume WFD

- Client can call this when it want to pause/resume wfd
- Calling this will make sure after pause, black screen
  is shown on the sink
- Currently used by the SecureDisplay module

Change-Id: If618edf76a82abe49fb676d3845ca1f1d5a8bf25
diff --git a/msm8084/libqservice/QServiceUtils.h b/msm8084/libqservice/QServiceUtils.h
index 3d1adc0..2817429 100644
--- a/msm8084/libqservice/QServiceUtils.h
+++ b/msm8084/libqservice/QServiceUtils.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013 The Linux Foundation. All rights reserved.
+* Copyright (c) 2013-14 The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
@@ -83,4 +83,8 @@
     return sendSingleParam(qService::IQService::BUFFER_MIRRORMODE, enable);
 }
 
+inline android::status_t pauseWFD(uint32_t pause) {
+    return sendSingleParam(qService::IQService::PAUSE_WFD, pause);
+}
+
 #endif /* end of include guard: QSERVICEUTILS_H */