support of rockchip nanopiM4 2GB board

[Deepak Das]

Hi Jagan,

upstream uboot has the support for nanopi M4 board with 4GB LPDDR3 RAM.
I have a nanopi M4 board with 2GB DDR3 RAM and able to boot this board
by using ddr3 configuration.

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Jagan Teki <jagan at amarulasolutions.com>
+ */
+
+#include "rk3399-nanopi4-u-boot.dtsi"
+#include "rk3399-sdram-ddr3-1866.dtsi"
+
+/* #include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi" */

how to handle this situation? do we need to treat this as a new board
support?

regards,
Deepak