Reduce cos bits for 64x64.

This is to get the high range within 32 bits.

The compression performance is neutral.

Change-Id: I475b2694f7cc7d786478c8821cf17982281dabce
diff --git a/test/av1_txfm_test.cc b/test/av1_txfm_test.cc
index 800f216..8e07136 100644
--- a/test/av1_txfm_test.cc
+++ b/test/av1_txfm_test.cc
@@ -179,12 +179,10 @@
 
 #if CONFIG_TX64X64
 int8_t low_range_arr[BD_NUM] = { 18, 32, 32 };
-// TODO(urvang): Try reducing cos bit by 1 for TX64X64 to get it back to 32.
-int8_t high_range_arr[BD_NUM] = { 33, 33, 33 };
 #else
 int8_t low_range_arr[BD_NUM] = { 16, 32, 32 };
-int8_t high_range_arr[BD_NUM] = { 32, 32, 32 };
 #endif  // CONFIG_TX64X64
+int8_t high_range_arr[BD_NUM] = { 32, 32, 32 };
 
 void txfm_stage_range_check(const int8_t *stage_range, int stage_num,
                             const int8_t *cos_bit, int low_range,