arm64: dts: qcom: sm8150-mtp: Add regulators

Add the regulators found in the mtp platform. This platform consists of
pmic PM8150, PM8150L and PM8009.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>