arm64: dts: qcom: msm/apq8994-kitakami: Add regulator config

Add regulator config for all Kitakami devices, commonizing where
applicable.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210118162432.107275-5-konrad.dybcio@somainline.org


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