e1000e: pass pointer to hw struct for e1000_init_mac_params_XXX()

The e1000_init_mac_params_XXX() functions (where XXX is one of the three
MAC-family types 80003es2lan, 82571 and ich8lan) was not meant to require a
pointer to the adapter struct but does require a pointer to the hw struct.
Pass that pointer in to the functions instead.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 942f4da..112d55f 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -553,9 +553,8 @@
  *  Initialize family-specific MAC parameters and function
  *  pointers.
  **/
-static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter)
+static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
 {
-	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_mac_info *mac = &hw->mac;
 
 	/* Set media type function pointer */
@@ -775,7 +774,7 @@
 	struct e1000_hw *hw = &adapter->hw;
 	s32 rc;
 
-	rc = e1000_init_mac_params_ich8lan(adapter);
+	rc = e1000_init_mac_params_ich8lan(hw);
 	if (rc)
 		return rc;