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/aristainetos_defconfig b/configs/aristainetos_defconfig
index 17cc664..b619e0d 100644
--- a/configs/aristainetos_defconfig
+++ b/configs/aristainetos_defconfig
@@ -37,6 +37,7 @@
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_MTD_UBI_FASTMAP=y
 CONFIG_MTD_UBI_FASTMAP_AUTOCONVERT=1
+CONFIG_PHYLIB=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 # CONFIG_VIDEO_SW_CURSOR is not set