board: gateworks: venice: add board model to dt

Add the specific board model from EEPROM config to the device-tree to
make it easier to access from Linux userspace.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/configs/imx8mm_venice_defconfig b/configs/imx8mm_venice_defconfig
index d8d930a..44ff5f8 100644
--- a/configs/imx8mm_venice_defconfig
+++ b/configs/imx8mm_venice_defconfig
@@ -27,6 +27,7 @@
 CONFIG_FIT_EXTERNAL_OFFSET=0x3000
 CONFIG_SPL_LOAD_FIT=y
 CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-imx/mkimage_fit_atf.sh"
+CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg"
 # CONFIG_USE_BOOTCOMMAND is not set