Build fix for vp9

Change-Id: I1b93ea826487f9033de70fc4563ade410fe07d74
diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index f05dcd3..b1d8dc3 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -1104,7 +1104,7 @@
       THR_D63_PRED  /*D63_PRED*/,
       THR_TM        /*TM_PRED*/,
     };
-    ++cpi->mode_chosen_counts[kf_mode_index[mbmi->mode]];
+    ++cpi->mode_chosen_counts[kf_mode_index[xdmi->mode]];
   } else {
     // Note how often each mode chosen as best
     ++cpi->mode_chosen_counts[ctx->best_mode_index];