regulator: qcom-rpmh: Fix LDO 12 regulator for PM8550

The LDO 12 is NLDO 515 low voltage type, so fix accordingly.

Fixes: e6e3776d ("regulator: qcom-rpmh: Add support for PM8550 regulators")
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230801095702.2891127-1-abel.vesa@linaro.org


Signed-off-by: Mark Brown <broonie@kernel.org>