e1000: 3 new driver stats for managability testing

Add 3 extra packet redirect counters for tracking purposes to make sure
we can test that all packets arrive properly.

Originally from Jesse Brandeburg <jesse.brandeburg@intel.com>,
rewritten to use feature flags by me.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c
index 5a6a61e..9be4469 100644
--- a/drivers/net/e1000/e1000_hw.c
+++ b/drivers/net/e1000/e1000_hw.c
@@ -458,6 +458,9 @@
 	if (hw->mac_type == e1000_80003es2lan)
 		hw->rx_needs_kicking = TRUE;
 
+	if (hw->mac_type > e1000_82544)
+		hw->has_smbus = TRUE;
+
 	return E1000_SUCCESS;
 }