iwlwifi: make BT coex config a virtual method

Some future hardware will require a different command to
be sent for bluetooth coexist, so make this a virtual
method that can be changed on a per-device basis.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 51f1895..d10e59d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -2687,6 +2687,7 @@
 static struct iwl_hcmd_ops iwl3945_hcmd = {
 	.rxon_assoc = iwl3945_send_rxon_assoc,
 	.commit_rxon = iwl3945_commit_rxon,
+	.send_bt_config = iwl_send_bt_config,
 };
 
 static struct iwl_ucode_ops iwl3945_ucode = {