xilinx: Enable FRU command for all ARM based platforms

Enable it by default for board detection.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_zynq_virt_defconfig b/configs/xilinx_zynq_virt_defconfig
index df3da76..439a4fe 100644
--- a/configs/xilinx_zynq_virt_defconfig
+++ b/configs/xilinx_zynq_virt_defconfig
@@ -6,6 +6,7 @@
 CONFIG_DM_GPIO=y
 CONFIG_SPL_STACK_R_ADDR=0x200000
 CONFIG_SPL=y
+CONFIG_CMD_FRU=y
 CONFIG_DEFAULT_DEVICE_TREE="zynq-zc706"
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_SYS_CUSTOM_LDSCRIPT=y