arm64: dts: qcom: Add support for ECS LIVA QC710

arm64: dts: qcom: Add support for ECS LIVA QC710

Add a device tree for the ECS LIVA QC710 (Snapdragon 7c) mini PC/devkit.

Working:
- Wi-Fi (wcn3990 hw1.0)
- Bluetooth
- USB Type-A (USB3 and USB2)
- Ethernet (over USB2)
- HDMI Display
- eMMC
- SDHC (microSD slot)

Not included:
- HDMI Audio
- EC (IT8987)

Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260120234029.419825-10-val@packett.cool
[bjorn: Reordered apps_rsc and tlmm nodes]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>