[FS_ENET]: Fix module build.

If fs_enet is build as module, on PPC_CPM_NEW_BINDING platforms
mii-fec/mii-bitbang should be build as module, as well. On other
platforms, mii-fec/mii-bitbang must be included into the main module.
Otherwise some symbols remain undefined. Additionally, fs_enet uses
libphy, so add a select PHYLIB.

  Building modules, stage 2.
  MODPOST 5 modules
ERROR: "fs_scc_ops" [drivers/net/fs_enet/fs_enet.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig
index 2765e49..562ea68 100644
--- a/drivers/net/fs_enet/Kconfig
+++ b/drivers/net/fs_enet/Kconfig
@@ -2,6 +2,7 @@
        tristate "Freescale Ethernet Driver"
        depends on CPM1 || CPM2
        select MII
+       select PHYLIB
 
 config FS_ENET_HAS_SCC
 	bool "Chip has an SCC usable for ethernet"
@@ -11,11 +12,19 @@
 config FS_ENET_HAS_FCC
 	bool "Chip has an FCC usable for ethernet"
 	depends on FS_ENET && CPM2
-	select MDIO_BITBANG
 	default y
 
 config FS_ENET_HAS_FEC
 	bool "Chip has an FEC usable for ethernet"
 	depends on FS_ENET && CPM1
+	select FS_ENET_MDIO_FEC
 	default y
 
+config FS_ENET_MDIO_FEC
+	tristate "MDIO driver for FEC"
+	depends on FS_ENET && CPM1
+
+config FS_ENET_MDIO_FCC
+	tristate "MDIO driver for FCC"
+	depends on FS_ENET && CPM2
+	select MDIO_BITBANG