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>

drivers/net/ethernet/sun/Makefile

@@ -6,7 +6,6 @@ obj-$(CONFIG_HAPPYMEAL) += sunhme.o
 obj-$(CONFIG_SUNQE) += sunqe.o
 obj-$(CONFIG_SUNBMAC) += sunbmac.o
 obj-$(CONFIG_SUNGEM) += sungem.o
-obj-$(CONFIG_SUNGEM_PHY) += sungem_phy.o
 obj-$(CONFIG_CASSINI) += cassini.o
 obj-$(CONFIG_SUNVNET) += sunvnet.o
 obj-$(CONFIG_NIU) += niu.o

drivers/net/ethernet/sun/sungem.c

@@ -1721,7 +1721,7 @@ static void gem_init_phy(struct gem *gp)
 	if (gp->phy_type == phy_mii_mdio0 ||
 	    gp->phy_type == phy_mii_mdio1) {
 		/* Reset and detect MII PHY */
-		mii_phy_probe(&gp->phy_mii, gp->mii_phy_addr);
+		sungem_phy_probe(&gp->phy_mii, gp->mii_phy_addr);
 
 		/* Init PHY */
 		if (gp->phy_mii.def && gp->phy_mii.def->ops->init)