arm64: dts: qcom: sm8150-kumano: Set up camera fixed regulators

Sony - as per usual - used a whole bunch of GPIO-gated fixed
voltage regulators for camera sensors on Kumano. Describe them
and the corresponding pins.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230315-topic-kumano_dts0-v2-3-0ca7fa521b86@linaro.org