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/brppt1_nand_defconfig b/configs/brppt1_nand_defconfig
index e128fb4..c39d27d 100644
--- a/configs/brppt1_nand_defconfig
+++ b/configs/brppt1_nand_defconfig
@@ -52,6 +52,7 @@
 CONFIG_CMD_MTDPARTS=y
 CONFIG_NETCONSOLE=y
 # CONFIG_MMC is not set
+CONFIG_PHYLIB=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_MUSB_HOST=y