e1000e: rename e1000e_config_collision_dist() and call as function pointer

Rename e1000e_config_collision_dist() to
e1000e_config_collision_dist_generic() to signify the function is used for
more than one MAC-family type, and set and use it as a MAC ops function
pointer to be consistent with the driver design.

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/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c
index d10b27f..683abac 100644
--- a/drivers/net/ethernet/intel/e1000e/phy.c
+++ b/drivers/net/ethernet/intel/e1000e/phy.c
@@ -1181,7 +1181,7 @@
 
 	if (link) {
 		e_dbg("Valid link established!!!\n");
-		e1000e_config_collision_dist(hw);
+		hw->mac.ops.config_collision_dist(hw);
 		ret_val = e1000e_config_fc_after_link_up(hw);
 	} else {
 		e_dbg("Unable to establish link!!!\n");
@@ -1489,7 +1489,7 @@
 		e_dbg("Forcing 10mb\n");
 	}
 
-	e1000e_config_collision_dist(hw);
+	hw->mac.ops.config_collision_dist(hw);
 
 	ew32(CTRL, ctrl);
 }