iwlagn: move iwl_prepare_card_hw to the transport layer

This function is really related to the transport layer - move it.

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-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 9e801d8..fca0181 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -69,6 +69,11 @@
 	return priv->trans.ops->start_device(priv);
 }
 
+static inline int trans_prepare_card_hw(struct iwl_priv *priv)
+{
+	return priv->trans.ops->prepare_card_hw(priv);
+}
+
 static inline void trans_stop_device(struct iwl_priv *priv)
 {
 	priv->trans.ops->stop_device(priv);