arm64: dts: rockchip: Add RK3562 evb2 devicetree

arm64: dts: rockchip: Add RK3562 evb2 devicetree

DRAM: DDR4
Storage: eMMC
PMIC: RK809
Audio: Headphone and speaker
Interface:
- USB3.0 HOST
- USB2.0 HOST
- PCIe x4 slot(pcie2x1 available)
- SD card slot
- GMAC
- debug UART0

NOTE: the USB3.0 and the PCIe reuse the comboPHY, so the USB3.0 work in
USB2 only mode.

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Link: https://lore.kernel.org/r/20250509102308.761424-6-kever.yang@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>