Move PHYLIB to Kconfig

Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/configs/MPC837XEMDS_HOST_defconfig b/configs/MPC837XEMDS_HOST_defconfig
index eb3b735..9ad9e0d 100644
--- a/configs/MPC837XEMDS_HOST_defconfig
+++ b/configs/MPC837XEMDS_HOST_defconfig
@@ -17,6 +17,7 @@
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
 CONFIG_MTD_NOR_FLASH=y
+CONFIG_PHYLIB=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y