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/ls1043aqds_defconfig b/configs/ls1043aqds_defconfig
index 4ce071c..147c2ae 100644
--- a/configs/ls1043aqds_defconfig
+++ b/configs/ls1043aqds_defconfig
@@ -29,6 +29,7 @@
 CONFIG_FSL_CAAM=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_SPI_FLASH=y
+CONFIG_PHYLIB=y
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
 CONFIG_PCI=y