dt-bindings: arm: google: Add bindings for Google ARM platforms

This introduces bindings and dt-schema for the Google Tensor SoCs.
Currently just gs101 and pixel 6 are supported.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231211162331.435900-3-peter.griffin@linaro.org


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>