net: Fix sungem_phy sharing.

Since sungem_phy is used by multiple, unrelated, drivers make it
build as a real module under drivers/net.

depmod will pick up the symbol dependency and make sure sungem_phy.ko
gets loaded any time sungem.ko or spider_net.ko is loaded.

Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
index 1ff3491c..af345db 100644
--- a/drivers/net/ethernet/toshiba/spider_net.c
+++ b/drivers/net/ethernet/toshiba/spider_net.c
@@ -196,7 +196,7 @@
 	if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_THALF))
 		advertise |= SUPPORTED_1000baseT_Half;
 
-	mii_phy_probe(phy, phy->mii_id);
+	sungem_phy_probe(phy, phy->mii_id);
 	phy->def->ops->setup_aneg(phy, advertise);
 
 }
@@ -2120,7 +2120,7 @@
 		unsigned short id;
 		id = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR);
 		if (id != 0x0000 && id != 0xffff) {
-			if (!mii_phy_probe(phy, phy->mii_id)) {
+			if (!sungem_phy_probe(phy, phy->mii_id)) {
 				pr_info("Found %s.\n", phy->def->name);
 				break;
 			}