[NORMATIVE] Fix top right check condition in vert_a

Allow the right side rectangular block to access the top right
neighbor if available in vert_a partition.

BUG=aomedia:1343

Change-Id: I92369676ae1bea2d6dd5f09af612f4177560ae29

av1/common/mvref_common.c

@@ -391,7 +391,8 @@ static int has_top_right(const AV1_COMMON *cm, const MACROBLOCKD *xd,
   // not have a top right as it is decoded before the right hand
   // rectangle of the partition
   if (xd->mi[0]->mbmi.partition == PARTITION_VERT_A) {
-    if (mask_row & bs) has_tr = 0;
+    if (xd->n8_w == xd->n8_h)
+      if (mask_row & bs) has_tr = 0;
   }
 #endif  // CONFIG_EXT_PARTITION_TYPES
 

test/decode_to_md5.sh

@@ -57,7 +57,7 @@ decode_to_md5() {
 
 decode_to_md5_av1() {
   # expected MD5 sum for the last frame.
-  local expected_md5="155facd9ade570f14502bbfcaaeeca06"
+  local expected_md5="0f6429cfe97323627f3af72af39fa44d"
   local file="${AV1_IVF_FILE}"
 
   # TODO(urvang): Check in the encoded file (like libvpx does) to avoid