iwlwifi: drv object can release its own memory

Move that code to the iwl-drv.c

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 49f7e70..b3876de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -92,3 +92,10 @@
 	return ret;
 }
 
+void iwl_drv_stop(struct iwl_shared *shrd)
+{
+	iwl_remove(shrd->priv);
+
+	kfree(shrd->nic);
+}
+