Turn on opt-ref-mv by default

Change-Id: I97de7bb437601c3af6062ebada867a2b8af2f0cd

build/cmake/aom_config_defaults.cmake

diff --git a/build/cmake/aom_config_defaults.cmake b/build/cmake/aom_config_defaults.cmake
index 6d51252..22e8da1 100644
--- a/build/cmake/aom_config_defaults.cmake
+++ b/build/cmake/aom_config_defaults.cmake
@@ -133,7 +133,7 @@
 set(CONFIG_NO_FRAME_CONTEXT_SIGNALING 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_OBU_NO_IVF 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_OBU_SIZING 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_OPT_REF_MV 0 CACHE NUMBER "AV1 experiment flag.")
+set(CONFIG_OPT_REF_MV 1 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_PALETTE_THROUGHPUT 1 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_Q_ADAPT_PROBS 1 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_RD_DEBUG 0 CACHE NUMBER "AV1 experiment flag.")

test/decode_to_md5.sh

diff --git a/test/decode_to_md5.sh b/test/decode_to_md5.sh
index 9f4980c..8ef1f3c 100755
--- a/test/decode_to_md5.sh
+++ b/test/decode_to_md5.sh
@@ -57,7 +57,7 @@
 
 decode_to_md5_av1() {
   # expected MD5 sum for the last frame.
-  local expected_md5="287f864f910ee2b5a9e1836de96bbb77"
+  local expected_md5="3de5aa39c751e7ba7122c5df16063cee"
   local file="${AV1_IVF_FILE}"
 
   # TODO(urvang): Check in the encoded file (like libvpx does) to avoid