power: regulator: qcom-rpmh-regulator: adjust structs for U-Boot

Switch to our linear_range helpers and remove unused/unsupported
linux-isms.

Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
1 file changed