arm64: dts: qcom: qcs404: Add PMS405 RPM regulators

Add the RPM regulators found in PMS405 which is used in qcs404-evb

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>