iwlwifi: move iwl_bcast_addr to iwlcore

This patch renames iwl4965_broadcast_addr to iwl_bcast_addr
and moves it to iwlcore.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 1ec53a3..44215a7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2029,7 +2029,7 @@
 
 	frame_size = iwl4965_fill_beacon_frame(priv,
 				tx_beacon_cmd->frame,
-				iwl4965_broadcast_addr,
+				iwl_bcast_addr,
 				sizeof(frame->u) - sizeof(*tx_beacon_cmd));
 
 	BUG_ON(frame_size > MAX_MPDU_SIZE);