iwlagn: generic bt coex functions

Move bt coex functions to iwl-agn-lib.c, so those functions
can be shared by multiple wifi/bt combo devices

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@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 4410f82..5e0d0d5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -4024,9 +4024,9 @@
 
 	/* init bt coex */
 	if (priv->cfg->advanced_bt_coexist) {
-		priv->kill_ack_mask = IWL6000G2B_BT_KILL_ACK_MASK_DEFAULT;
-		priv->kill_cts_mask = IWL6000G2B_BT_KILL_CTS_MASK_DEFAULT;
-		priv->bt_valid = IWL6000G2B_BT_ALL_VALID_MSK;
+		priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
+		priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
+		priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
 		priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
 		priv->bt_duration = BT_DURATION_LIMIT_DEF;
 		priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;