arm64: dts: qcom: sm8550: add support for the SM8550-HDK board

arm64: dts: qcom: sm8550: add support for the SM8550-HDK board

The SM8550-HDK is an embedded development platforms for the
Snapdragon 8 Gen 2 SoC aka SM8550, with the following features:
- Qualcomm SM8550 SoC
- 16GiB On-board LPDDR5
- On-board WiFi 7 + Bluetooth 5.3/BLE
- On-board UFS4.0
- M.2 Key B+M Gen3x2 PCIe Slot
- HDMI Output
- USB-C Connector with DP Almode & Audio Accessory mode
- Micro-SDCard Slot
- Audio Jack with Playback and Microphone
- 2 On-board Analog microphones
- 2 On-board Speakers
- 96Boards Compatible Low-Speed and High-Speed connectors [1]
  - For Camera, Sensors and external Display cards
  - Compatible with the Linaro Debug board [2]
- SIM Slot for Modem
- Debug connectors
- 6x On-Board LEDs

Product Page: [3]

[1] https://www.96boards.org/specifications/
[2] https://git.codelinaro.org/linaro/qcomlt/debugboard
[3] https://www.lantronix.com/products/snapdragon-8-gen-2-mobile-hardware-development-kit/

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240125-topic-sm8550-upstream-hdk8550-v3-2-73bb5ef11cf8@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>