dt-bindings: clock: google,gs101-clock: add PERIC0 clock management unit

dt-bindings: clock: google,gs101-clock: add PERIC0 clock management unit

Add dt-schema documentation for the Connectivity Peripheral 0 (PERIC0)
clock management unit.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240119111132.1290455-2-tudor.ambarus@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>