arm64: dts: mediatek: add device-tree for Genio 700 EVK board

Add basic device-tree for the Genio 700 EVK board. The
Genio 700 EVK is based on MediaTek MT8390 SoC.
MT8390 hardware register maps are identical to MT8188.

The Genio 700 EVK has following features:

- MT8390 SoC
- MT6365 PMIC
- MT6319 Buck IC
- 12V DC Jack
- 2x4GB LPDDR4X
- 64GB eMMC 5.1
- 64Mb SPI NOR
- M.2 Key A-E slot with PCIe Gen2 and USB 2.0
- 2x DSI LCM ports
- 2x touch sensor ports
- 2x MIPI-CSI, as camera daughter board slots
- USB 2 micro USB connector
- USB 3 with 1 to 2 hub:
  - M.2 Key B slot
  - Type-C connector, with DisplayPort over Type-C
- HDMI 2.0 TX port with Type A HDMI connector
- eDP port
- Gigabit Ethernet with RJ45 connector
- SD card slot
- Earphone Jack
- Analog Microphone
- 2x Digital Microphone
- 3x UART with serial-to-usb converters and micro USB connectors

Signed-off-by: Chris-QJ Chen <chris-qj.chen@mediatek.com>
Signed-off-by: Pablo Sun <pablo.sun@mediatek.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230915081212.13959-2-macpaul.lin@mediatek.com


Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>