arm64: dts: qcom: sdm845: align RPMh regulator nodes with bindings

[ Upstream commit 86dd19bb

 ]

Device node names should be generic and bindings expect certain pattern
for RPMh regulator nodes.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230127114347.235963-6-krzysztof.kozlowski@linaro.org
Stable-dep-of: a5f01673

 ("arm64: dts: qcom: sdm845: Fix PSCI power domain names")
Signed-off-by: Sasha Levin <sashal@kernel.org>