arm64:dts:tr8p: Add initial trizeps8plus V1R3 devicetree with pconxs
Integrate and rework commits from !437 (closed) and !421 (closed) to make trizeps8plus work with pconcxs and the ATM700 display.
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Integrate and rework commits from !437 (closed) and !421 (closed) to make trizeps8plus work with pconcxs and the ATM700 display.