board: rockchip: Add the Turing RK1 SoM

The Turing RK1 is a Rockchip RK3588 based SoM from Turing Machines.

Specifications:

    Rockchip RK3588 SoC
    4x ARM Cortex-A76, 4x ARM Cortex-A55
    8/16/32GB memory LPDDR4x
    Mali G610MC4 GPU
    32GB eMMC HS400
    2x USB 2.0, 2x USB 3.0
    2x MIPI CSI 4x lanes
    1x MIPI-DSI DPHY 2x lanes
    PCIe 2.0 x1, PCIe 3.0 x4
    1x HDMI 2.1 output, 1x DP 1.4 output
    Gigabit Ethernet
    Size: 69.6mm x 45mm (260-pin SO-DIMM connector)

Kernel commit:
2806a69f3fef ("arm64: dts: rockchip: Add Turing RK1 SoM support")

Signed-off-by: Joshua Riek <jjriek@verizon.net>
Tested-by: Sam Edwards <CFSworks@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>