arm64: dts: qcom: pms405: add spmi regulators

The PMS405 sports 5 SMPS and 13 LDO regulators, add the regulators to
pms405 DTS.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Khasim Syed Mohammed <khasim.mohammed@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
[bjorn: updated label]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Signed-off-by: Andy Gross <andy.gross@linaro.org>