board: rockchip: Add Hardkernel ODROID-M1

Hardkernel ODROID-M1 is a single board computer with a RK3568B2 SoC,
a slightly modified version of the RK3568 SoC.

Features tested on a ODROID-M1 8GB v1.0 2022-06-13:
- SD-card boot
- eMMC boot
- SPI Flash boot
- PCIe/NVMe/AHCI
- SATA port
- USB host

Device tree is imported from linux v6.4.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Tested-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/include/configs/odroid_m1.h b/include/configs/odroid_m1.h
new file mode 100644
index 0000000..0d2e9fd
--- /dev/null
+++ b/include/configs/odroid_m1.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __ODROID_M1_H
+#define __ODROID_M1_H
+
+#define ROCKCHIP_DEVICE_SETTINGS \
+	"cramfsaddr=0x0c000000\0"
+
+#include <configs/rk3568_common.h>
+
+#endif