arm64: dts: sdm845: follow venus-sdm845v2 DT binding

Move all pmdomain and clock resources to Venus DT node. And make
possible to support dynamic core assignment on v4.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Link: https://lore.kernel.org/r/20200106154929.4331-12-stanimir.varbanov@linaro.org


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