microblaze: Enable PHYLIB via Kconfig

Cleanup board configuration.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/microblaze-generic_defconfig b/configs/microblaze-generic_defconfig
index 0947c46..fe731d0 100644
--- a/configs/microblaze-generic_defconfig
+++ b/configs/microblaze-generic_defconfig
@@ -10,5 +10,6 @@
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_EMBED=y
+CONFIG_PHYLIB=y
 CONFIG_SYS_NS16550=y
 CONFIG_XILINX_UARTLITE=y