Rename aom_write_nmv_probs as av1_write_nmv_probs

Change-Id: Ia33ce4918d3d40eba331f81909f3f1f0f3ab7a58
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 7ef24bb..ed032f6 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -3511,7 +3511,7 @@
       prob_diff_update(av1_intra_mode_tree, cm->fc->y_mode_prob[i],
                        counts->y_mode[i], INTRA_MODES, header_bc);
 
-    aom_write_nmv_probs(cm, cm->allow_high_precision_mv, header_bc,
+    av1_write_nmv_probs(cm, cm->allow_high_precision_mv, header_bc,
 #if CONFIG_REF_MV
                         counts->mv);
 #else