So far we had some supplies defined for all boards in msm8916.dtsi,
while others were duplicated into every board-specific device tree.

Now that we have msm8916-pm8916.dtsi as a common include for all
standard MSM8916 devices using PM8916, move the remaining common
supplies to msm8916-pm8916.dtsi to reduce duplication a bit.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20200720085406.6716-9-stephan@gerhold.netSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>