board: rockchip: Add Pine64 SOQuartz on CM4-IO

The Pine64 SOQuartz compute module is mostly pin-compatible with the RPi
CM4 form factor. Therefore, it can slot into the official Raspberry Pi
CM4 IO carrier board. Add this configuration to U-Boot.

Features tested with a SOQuartz 4GB v1.1 2022-07-11:
- SD-card boot
- eMMC boot
- USB host

Device tree is imported from linux v6.4.

Co-developed-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 916de09..bb4d635 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -175,6 +175,7 @@
 	rk3566-quartz64-b.dtb \
 	rk3566-radxa-cm3-io.dtb \
 	rk3566-soquartz-blade.dtb \
+	rk3566-soquartz-cm4.dtb \
 	rk3566-soquartz-model-a.dtb \
 	rk3568-evb.dtb \
 	rk3568-nanopi-r5c.dtb \