mac80211: rename driver-trace file

This file will contain more soon, so
rename it to just trace.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 9330269..44e8c12 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -3,7 +3,7 @@
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
-#include "driver-trace.h"
+#include "trace.h"
 
 static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
 {