board: gateworks: imx8mm: Add Gateworks Venice board support

Add initial support for Gateworks Venice product family based on the
i.MX 8M Mini SoC

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/board/gateworks/venice/MAINTAINERS b/board/gateworks/venice/MAINTAINERS
new file mode 100644
index 0000000..07b9e2a
--- /dev/null
+++ b/board/gateworks/venice/MAINTAINERS
@@ -0,0 +1,7 @@
+i.MX8MM Venice
+M:	Tim Harvey <tharvey@gateworks.com>
+S:	Maintained
+F:	arch/arm/dts/imx8mm-venice*
+F:	board/gateworks/venice/
+F:	include/configs/venice.h
+F:	configs/imx8mm_venice_defconfig