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_sd_defconfig b/configs/woodburn_sd_defconfig
index eabe725..84aadb1 100644
--- a/configs/woodburn_sd_defconfig
+++ b/configs/woodburn_sd_defconfig
@@ -34,3 +34,4 @@
 # CONFIG_PARTITION_UUIDS is not set
 # CONFIG_SPL_PARTITION_UUIDS is not set
 CONFIG_MTD_NOR_FLASH=y
+CONFIG_PHYLIB=y