sdm: drm: Set HDR metadata to sink

Set HDR metadata to sink for HDR playback support.

CRs-Fixed: 2143509
Change-Id: I6e7021c6cda7cd32efe3fc6d88f6322762477a17
diff --git a/libdrmutils/drm_interface.h b/libdrmutils/drm_interface.h
index f93825d..6ff192e 100644
--- a/libdrmutils/drm_interface.h
+++ b/libdrmutils/drm_interface.h
@@ -304,6 +304,12 @@
    *      uint32_t - CRTC ID
    */
   CONNECTOR_SET_CRTC,
+  /*
+   * Op: Sets connector hdr metadata
+   * Arg: uint32_t - Connector ID
+   *      drm_msm_ext_hdr_metadata - hdr_metadata
+   */
+  CONNECTOR_SET_HDR_METADATA,
 };
 
 enum struct DRMRotation {