Use switchable_interp_cdf with CONFIG_EC_MULTISYMBOL.

Change-Id: I3f7eeff102fc30e2cef59c2c07df94826587d100
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 60e2fbf..896e6d7 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -1111,7 +1111,7 @@
 #else
     {
       const int ctx = av1_get_pred_context_switchable_interp(xd);
-#if CONFIG_DAALA_EC
+#if CONFIG_EC_MULTISYMBOL
       aom_write_symbol(w, av1_switchable_interp_ind[mbmi->interp_filter],
                        cm->fc->switchable_interp_cdf[ctx], SWITCHABLE_FILTERS);
 #else