Support for delta-q at superblock level

Change-Id: I4128af44776d1f361bddc1fdffb75ed2224dbfa5
diff --git a/aomenc.c b/aomenc.c
index 3f9a87d..3b34ed8 100644
--- a/aomenc.c
+++ b/aomenc.c
@@ -392,10 +392,17 @@
     ARG_DEF(NULL, "frame-parallel", 1,
             "Enable frame parallel decodability features "
             "(0: false (default), 1: true)");
+#if CONFIG_DELTA_Q
+static const arg_def_t aq_mode = ARG_DEF(
+    NULL, "aq-mode", 1,
+    "Adaptive quantization mode (0: off (default), 1: variance 2: complexity, "
+    "3: cyclic refresh)");
+#else
 static const arg_def_t aq_mode = ARG_DEF(
     NULL, "aq-mode", 1,
     "Adaptive quantization mode (0: off (default), 1: variance 2: complexity, "
     "3: cyclic refresh, 4: equator360)");
+#endif
 static const arg_def_t frame_periodic_boost =
     ARG_DEF(NULL, "frame-boost", 1,
             "Enable frame periodic boost (0: off (default), 1: on)");