arm64: dts: qcom: qrb2210: add dts for Arduino unoq

arm64: dts: qcom: qrb2210: add dts for Arduino unoq

Arduino UnoQ is a single-board computer combining Qualcomm
Dragonwing™ QRB2210 microprocessor with STMicroelectronics STM32U585
microcontroller.
Support to a simply boot to shell environment includes:
- UART, I2C, SPI
- onboard LEDS
- eMMC
- WLAN and BT

Signed-off-by: Riccardo Mereu <r.mereu@arduino.cc>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20251120155825.121483-7-r.mereu.kernel@arduino.cc
Signed-off-by: Bjorn Andersson <andersson@kernel.org>