Fix high bit-depth transform unit test failure

BUG=aomedia:430

Change-Id: I1e6fc42163b94f221d3010f00bb5e085707687c8

test/av1_txfm_test.cc

@@ -14,7 +14,7 @@
 
 namespace libaom_test {
 
-int get_txfm1d_size(TX_SIZE tx_size) { return 1 << (tx_size + 2); }
+int get_txfm1d_size(TX_SIZE tx_size) { return tx_size_wide[tx_size]; }
 
 void get_txfm1d_type(TX_TYPE txfm2d_type, TYPE_TXFM *type0, TYPE_TXFM *type1) {
   switch (txfm2d_type) {

test/av1_txfm_test.h

@@ -79,12 +79,18 @@ static const int input_base = (1 << bd);
 #if CONFIG_AOM_HIGHBITDEPTH
 #if CONFIG_AV1_ENCODER
 static const Fwd_Txfm2d_Func fwd_txfm_func_ls[TX_SIZES] = {
+#if CONFIG_CB4X4
+  NULL,
+#endif
   av1_fwd_txfm2d_4x4_c, av1_fwd_txfm2d_8x8_c, av1_fwd_txfm2d_16x16_c,
   av1_fwd_txfm2d_32x32_c
 };
 #endif
 
 static const Inv_Txfm2d_Func inv_txfm_func_ls[TX_SIZES] = {
+#if CONFIG_CB4X4
+  NULL,
+#endif
   av1_inv_txfm2d_add_4x4_c, av1_inv_txfm2d_add_8x8_c,
   av1_inv_txfm2d_add_16x16_c, av1_inv_txfm2d_add_32x32_c
 };