dt-bindings: arm: qcom: Document HAMOA-IOT-EVK board

dt-bindings: arm: qcom: Document HAMOA-IOT-EVK board

Document the device tree binding for the HAMOA-IOT-EVK board, which uses
the Qualcomm X1E80100 SoC.

The EVK consists of a carrier board and a modular System-on-Module (SoM).
The SoM integrates the SoC, PMICs, and essential GPIOs, while the EVK
carrier board provides additional peripherals such as UART and USB
interfaces.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250917-hamoa_initial-v12-1-4ed39d17dfc5@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>