net: convert multicast list to list_head

Converts the list and the core manipulating with it to be the same as uc_list.

+uses two functions for adding/removing mc address (normal and "global"
 variant) instead of a function parameter.
+removes dev_mcast.c completely.
+exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
 manipulation with lists on a sandbox (used in bonding and 80211 drivers)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2b8edd2..1f9df5c 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -952,13 +952,14 @@
 			emac_add_mcast(priv, EMAC_ALL_MULTI_SET, NULL);
 		}
 		if (!netdev_mc_empty(ndev)) {
-			struct dev_mc_list *mc_ptr;
+			struct netdev_hw_addr *ha;
+
 			mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
 			emac_add_mcast(priv, EMAC_ALL_MULTI_CLR, NULL);
 			/* program multicast address list into EMAC hardware */
-			netdev_for_each_mc_addr(mc_ptr, ndev) {
+			netdev_for_each_mc_addr(ha, ndev) {
 				emac_add_mcast(priv, EMAC_MULTICAST_ADD,
-					       (u8 *) mc_ptr->dmi_addr);
+					       (u8 *) ha->addr);
 			}
 		} else {
 			mbp_enable = (mbp_enable & ~EMAC_MBP_RXMCAST);