Decouple encoder side x0 parameter from dq_type

The x0 parameter can now be chosen on the encoder side
independently of the dq offset.

Change-Id: I4a63bae6ae81d5a7f65c53efe1b1ecd713355b01
diff --git a/av1/encoder/block.h b/av1/encoder/block.h
index 7cb8d54..8826a0c 100644
--- a/av1/encoder/block.h
+++ b/av1/encoder/block.h
@@ -52,7 +52,7 @@
   const int16_t *round_QTX;
   const int16_t *dequant_QTX;
 #if CONFIG_NEW_QUANT
-  const cuml_bins_type_nuq *cuml_bins_nuq[QUANT_PROFILES];
+  const cuml_bins_type_nuq *cuml_bins_nuq[X0_PROFILES];
   const dequant_val_type_nuq *dequant_val_nuq_QTX[QUANT_PROFILES];
 #endif  // CONFIG_NEW_QUANT
 } MACROBLOCK_PLANE;