xilinx: Enable DFU_TIMEOUT config

Enable CONFIG_DFU_TIMEOUT to set timeout waiting for dfu command.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynq_virt_defconfig b/configs/xilinx_zynq_virt_defconfig
index 3892a71..7e56395 100644
--- a/configs/xilinx_zynq_virt_defconfig
+++ b/configs/xilinx_zynq_virt_defconfig
@@ -65,6 +65,7 @@
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_NETCONSOLE=y
 CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_DFU_TIMEOUT=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
 CONFIG_FPGA_XILINX=y