drivers: soc: qcom: rpmpd: Add SM6115 RPM Power Domains

The SM4250/6115 have 4 rpm power domains, ported from downstream DT.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20210627185927.695411-6-iskren.chernev@gmail.com


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