arm64: dts: rockchip: add dts for Firefly Station M2 rk3566

Add dts for Firefly Station M2.
Working IO:
* UART
* LED
* LAN
* Wifi
* SD Card
* eMMC
* USB2
Signed-off-by: Furkan Kardame <f.kardame@manjaro.org>
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220429115252.2360496-8-pgwipeout@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/Makefile

@@ -60,6 +60,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-pinenote-v1.2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-quartz64-b.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-soquartz-cm4.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-bpi-r2-pro.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-evb1-v10.dtb