Add DT support to palmas regulator. This involved a little change to
the platform data structure. Regulator information can now come from
platform data or DT.
Signed-off-by: NGraeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>