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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: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>