Use inter_mode_cdf with CONFIG_EC_MULTISYMBOL.

Change-Id: I1cf27d2f029c1e985cafb468f60e7117d92593f5
diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index 0363ea2..ed833f3 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -196,7 +196,7 @@
   // Invalid prediction mode.
   assert(0);
 #else
-#if CONFIG_DAALA_EC
+#if CONFIG_EC_MULTISYMBOL
   const int mode = av1_inter_mode_inv[aom_read_symbol(
       r, cm->fc->inter_mode_cdf[ctx], INTER_MODES, ACCT_STR)];
 #else