arm64: dts: qcom: sc8280xp-crd: rename backlight and misc regulators

Rename the backlight and misc regulators according to the net names.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221110103558.12690-4-johan+linaro@kernel.org