ARM: dts: sun8i: h2+: Add Libre Computer Board ALL-H3-CC H2+ ver.

This patch adds a device tree file for the H2+ version of the Libre
Computer Board ALL-H3-CC. It is the same board first introduced in
commit 6ca358645d4d ("ARM: dts: sun8i: h3: Add dts file for Libre
Computer Board ALL-H3-CC H3 ver."), with the H3 SoC replaced with
the H2+ SoC, and has only two 2Gb DDR3 chips instead of four.

The device tree utilizes the common board design file for ALL-H3-CC,
providing just the model strings and SoC specifics.

Signed-off-by: Chen-Yu Tsai <[e-mail]>
Signed-off-by: Maxime Ripard <[e-mail]>

arch/arm/boot/dts/Makefile

···
 	sun8i-a83t-cubietruck-plus.dtb \
 	sun8i-a83t-tbs-a711.dtb \
 	sun8i-h2-plus-bananapi-m2-zero.dtb \
+	sun8i-h2-plus-libretech-all-h3-cc.dtb \
 	sun8i-h2-plus-orangepi-r1.dtb \
 	sun8i-h2-plus-orangepi-zero.dtb \
 	sun8i-h3-bananapi-m2-plus.dtb \

arch/arm/boot/dts/sun8i-h2-plus-libretech-all-h3-cc.dts

···
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2018 Chen-Yu Tsai <[e-mail]>
+ */
+
+/dts-v1/;
+#include "sun8i-h3.dtsi"
+#include "sunxi-libretech-all-h3-cc.dtsi"
+
+/ {
+	model = "Libre Computer Board ALL-H3-CC H2+";
+	compatible = "libretech,all-h3-cc-h2-plus", "allwinner,sun8i-h2-plus";
+};