ARM: rmobile: Add Beacon EmbeddedWorks RZG2M Dev Kit

The Beacon EmbeddedWorks kit is based on the R8A774A1 SoC also
known as the RZ/G2M.

The kit consists of a SOM + Baseboard and supports microSD,
eMMC, Ethernet, a couple celular radios, two CAN interfaces,
Bluetooth and WiFi.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/beacon/beacon-rzg2m/Kconfig b/board/beacon/beacon-rzg2m/Kconfig
new file mode 100644
index 0000000..c03857c
--- /dev/null
+++ b/board/beacon/beacon-rzg2m/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_BEACON_RZG2M
+
+config SYS_SOC
+	default "rmobile"
+
+config SYS_BOARD
+	default "beacon-rzg2m"
+
+config SYS_VENDOR
+	default "beacon"
+
+config SYS_CONFIG_NAME
+	default "beacon-rzg2m"
+
+endif