arm64: dts: qcom: sdm845: add required clocks on the gcc

Specify input clocks to the SDM845's Global Clock Controller as required
by the bindings.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210402233944.273275-4-dmitry.baryshkov@linaro.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>