iwlwifi: add config_ap lib op

add config_ap lib op to iwlwifi and iwl3945 in preparation
of future 3945 porting actions.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 4640996..97f8322 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2036,7 +2036,7 @@
 	return NETDEV_TX_OK;
 }
 
-static void iwl_config_ap(struct iwl_priv *priv)
+void iwl_config_ap(struct iwl_priv *priv)
 {
 	int ret = 0;
 	unsigned long flags;
@@ -2178,7 +2178,7 @@
 		memcpy(priv->bssid, conf->bssid, ETH_ALEN);
 
 		if (priv->iw_mode == NL80211_IFTYPE_AP)
-			iwl_config_ap(priv);
+			iwlcore_config_ap(priv);
 		else {
 			rc = iwlcore_commit_rxon(priv);
 			if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)