DON'T UPSTREAM: arm64: dts: qcom: sa8155p-iot-v2-adp: Add base dts file

Add base DTS file for SA8155p IOT v2 Automotive Development Platform.
It enables boot to console, adds tlmm reserved range and ufs flash.
It also includes pmic file.

SA8155p IOT v2-adp board is based on sa8155p IOT v2 Qualcomm
Snapdragon SoC. This platform is similar to the SM8150, so use this as base
for now.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>