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/woodburn_defconfig b/configs/woodburn_defconfig
index c09f41f..41844c0 100644
--- a/configs/woodburn_defconfig
+++ b/configs/woodburn_defconfig
@@ -23,3 +23,4 @@
 CONFIG_EFI_PARTITION=y
 # CONFIG_PARTITION_UUIDS is not set
 CONFIG_MTD_NOR_FLASH=y
+CONFIG_PHYLIB=y