ath: move ath_bcast_mac to common header

This is used by both ath5k and ath9k to set the first bssid mask.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index a63e90c..59072e3 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -19,6 +19,8 @@
 
 #include <linux/skbuff.h>
 
+static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
 struct reg_dmn_pair_mapping {
 	u16 regDmnEnum;
 	u16 reg_5ghz_ctl;