Fix EOB threshold array size

- TX_SIZES_ALL is the correct macro to cover all txfm sizes.

BUG=aomedia:435

Change-Id: I035a8395a78982e5b19857a3ba5f9d9f657b7902

av1/common/entropymode.h

diff --git a/av1/common/entropymode.h b/av1/common/entropymode.h
index 9cdd2b7..e31a39a 100644
--- a/av1/common/entropymode.h
+++ b/av1/common/entropymode.h
@@ -165,7 +165,7 @@
 
   SCAN_ORDER sc[TX_SIZES_ALL][TX_TYPES];
 
-  int16_t eob_threshold[TX_SIZES][TX_TYPES][EOB_THRESHOLD_NUM];
+  int16_t eob_threshold[TX_SIZES_ALL][TX_TYPES][EOB_THRESHOLD_NUM];
 #endif  // CONFIG_ADAPT_SCAN
 
 #if CONFIG_LV_MAP