Support for delta-q at superblock level

Change-Id: I4128af44776d1f361bddc1fdffb75ed2224dbfa5
diff --git a/av1/common/onyxc_int.h b/av1/common/onyxc_int.h
index cf8d7b4..525680f 100644
--- a/av1/common/onyxc_int.h
+++ b/av1/common/onyxc_int.h
@@ -395,6 +395,9 @@
 #if CONFIG_DERING
   int dering_level;
 #endif
+#if CONFIG_DELTA_Q
+  int delta_q_present_flag;
+#endif
 } AV1_COMMON;
 
 // TODO(hkuang): Don't need to lock the whole pool after implementing atomic