mac80211: rename files

This patch renames all mac80211 files (except ieee80211_i.h) to get rid
of the useless ieee80211_ prefix.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h
index 9f72393..363779c 100644
--- a/net/mac80211/wep.h
+++ b/net/mac80211/wep.h
@@ -14,7 +14,7 @@
 #include <linux/skbuff.h>
 #include <linux/types.h>
 #include "ieee80211_i.h"
-#include "ieee80211_key.h"
+#include "key.h"
 
 int ieee80211_wep_init(struct ieee80211_local *local);
 void ieee80211_wep_free(struct ieee80211_local *local);