dt-bindings: power: rpmpd: Add SDM660 power-domains bindings

Add the new bindings for SDM660 rpmpd power domains.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20201018122620.9735-2-kholk11@gmail.com


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