Add a DT binding for the BCM590xx PMUs. The binding inherits from
the generic regulator bindings.
Signed-off-by: NMatt Porter <mporter@linaro.org>
Reviewed-by: NTim Kryger <tim.kryger@linaro.org>
Reviewed-by: NMarkus Mayer <markus.mayer@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>