openmax: Add OMX_IndexConfigAndroidIntraRefresh for intra refresh.

Bug:26587630

Change-Id: I153d6d617d2aaf9e216dcdf3dec809b778decebf
diff --git a/include/media/openmax/OMX_AsString.h b/include/media/openmax/OMX_AsString.h
index c3145c9..a741f6d 100644
--- a/include/media/openmax/OMX_AsString.h
+++ b/include/media/openmax/OMX_AsString.h
@@ -521,6 +521,7 @@
         case OMX_IndexParamVideoAndroidVp8Encoder:      return "ParamVideoAndroidVp8Encoder";
         case OMX_IndexParamVideoHevc:                   return "ParamVideoHevc";
 //      case OMX_IndexParamSliceSegments:               return "ParamSliceSegments";
+        case OMX_IndexConfigAndroidIntraRefresh:        return "ConfigAndroidIntraRefresh";
         case OMX_IndexConfigAutoFramerateConversion:    return "ConfigAutoFramerateConversion";
         case OMX_IndexConfigPriority:                   return "ConfigPriority";
         case OMX_IndexConfigOperatingRate:              return "ConfigOperatingRate";