imx: Add support for i.MX8MM Beacon EmbeddedWorks devkit.

Beacon EmbeddedWorks, formerly known as Logic PD, is releasing
a devkit based on the i.MX8M Mini SoC consisting of baseboard +
SOM.

It supports eMMC on the SOM, microSD on the baseboard, various
GPIO, the PINCTRL, and UART.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/beacon/imx8mm/Kconfig b/board/beacon/imx8mm/Kconfig
new file mode 100644
index 0000000..df3125e
--- /dev/null
+++ b/board/beacon/imx8mm/Kconfig
@@ -0,0 +1,14 @@
+if TARGET_IMX8MM_BEACON
+
+config SYS_BOARD
+	default "imx8mm"
+
+config SYS_VENDOR
+	default "beacon"
+
+config SYS_CONFIG_NAME
+	default "imx8mm_beacon"
+
+source "board/freescale/common/Kconfig"
+
+endif