make net/ieee80211.h private to ipw2x00

Only ipw2x00 now uses it.  Reduce confusion.  Profit!

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ipw2x00/libipw_tx.c b/drivers/net/wireless/ipw2x00/libipw_tx.c
index f78f57e..a874e90 100644
--- a/drivers/net/wireless/ipw2x00/libipw_tx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_tx.c
@@ -41,7 +41,7 @@
 #include <linux/etherdevice.h>
 #include <asm/uaccess.h>
 
-#include <net/ieee80211.h>
+#include "ieee80211.h"
 
 /*