Fix a build issue

Change-Id: I5bd5d01308c391cd3855844a17336262d12241ee

vp10/encoder/quantize.h

diff --git a/vp10/encoder/quantize.h b/vp10/encoder/quantize.h
index 29f044c..5f047ca 100644
--- a/vp10/encoder/quantize.h
+++ b/vp10/encoder/quantize.h
@@ -12,6 +12,7 @@
 #define VP10_ENCODER_QUANTIZE_H_
 
 #include "./vpx_config.h"
+#include "vp10/common/quant_common.h"
 #include "vp10/encoder/block.h"
 
 #ifdef __cplusplus