iwlagn: move all iwl_is_XXX helpers to iwl-shared.h

Logic move after all priv->status moved to struct iwl_shared

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c
index a2950a4..b080e69 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.c
@@ -715,7 +715,7 @@
 	else
 		set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
 
-	if (iwl_is_rfkill(priv)) {
+	if (iwl_is_rfkill(priv->shrd)) {
 		wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
 		iwl_enable_interrupts(trans(priv));
 		return -ERFKILL;