Fix tile decoding input parameter control

This commit fixes the tile decoding parameter control for ext-tile.

Bug=aom:122

Change-Id: I2cb702cee8d1e8083915c3a2d15c68927414b91c

aomdec.c

@@ -721,18 +721,16 @@ static int main_loop(int argc, const char **argv_) {
   if (!quiet) fprintf(stderr, "%s\n", decoder.name);
 
 #if CONFIG_AV1_DECODER && CONFIG_EXT_TILE
-  if (strncmp(decoder.name, "WebM Project AV1", 17) == 0) {
-    if (aom_codec_control(&decoder, AV1_SET_DECODE_TILE_ROW, tile_row)) {
-      fprintf(stderr, "Failed to set decode_tile_row: %s\n",
-              aom_codec_error(&decoder));
-      goto fail;
-    }
+  if (aom_codec_control(&decoder, AV1_SET_DECODE_TILE_ROW, tile_row)) {
+    fprintf(stderr, "Failed to set decode_tile_row: %s\n",
+            aom_codec_error(&decoder));
+    goto fail;
+  }
 
-    if (aom_codec_control(&decoder, AV1_SET_DECODE_TILE_COL, tile_col)) {
-      fprintf(stderr, "Failed to set decode_tile_col: %s\n",
-              aom_codec_error(&decoder));
-      goto fail;
-    }
+  if (aom_codec_control(&decoder, AV1_SET_DECODE_TILE_COL, tile_col)) {
+    fprintf(stderr, "Failed to set decode_tile_col: %s\n",
+            aom_codec_error(&decoder));
+    goto fail;
   }
 #endif