arm64: dts: qcom: qcs6490: Add Thundercomm AI Mini PC G1 IoT

arm64: dts: qcom: qcs6490: Add Thundercomm AI Mini PC G1 IoT

Thundercomm AI MiniPC G1 IoT is single board computer with
AI capability based on Qualcomm QCS6490 platform.

This device tree is confirmed to work as below:
- GPU
- HDMI output port
- PCIe M.2 port (for external Wi-Fi or 5G connectivity)
- UART / serial console port
- UFS
- USB Type-C port, with Display Port

Signed-off-by: Roger Shimizu <rosh@debian.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260207-next-20260130_rosh-v2-3-548bbe0c7742@debian.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>