arm64: zynqmp: Enable netconsole for ZynqMP

It is nice feature

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_versal_virt_defconfig b/configs/xilinx_versal_virt_defconfig
index 1acd871..e8c3492 100644
--- a/configs/xilinx_versal_virt_defconfig
+++ b/configs/xilinx_versal_virt_defconfig
@@ -31,6 +31,7 @@
 CONFIG_OF_BOARD=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_NETCONSOLE=y
 CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_BLOCKSIZE=4096
 CONFIG_CLK_VERSAL=y