arm64: zynqmp: Enable netconsole for ZynqMP

It is nice feature

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynq_virt_defconfig b/configs/xilinx_zynq_virt_defconfig
index 76beea1..54cbd3e 100644
--- a/configs/xilinx_zynq_virt_defconfig
+++ b/configs/xilinx_zynq_virt_defconfig
@@ -43,6 +43,7 @@
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_NETCONSOLE=y
 CONFIG_SPL_DM_SEQ_ALIAS=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y