dt-bindings: clock: Add QDU1000 and QRU1000 GCC clocks

Add device tree bindings for global clock controller on QDU1000 and
QRU1000 SoCs.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230112204446.30236-2-quic_molvera@quicinc.com