regulator/mc13783: various cleanups

regulator/mc13783: various cleanups

- define needed registers and bits in the driver
- properly namespace functions and structs
- fix locking as required by patch
  "mfd/mc13783: near complete rewrite"
- use platform_data as provided by "mfd/mc13783: near complete rewrite"
  instead of accessing struct mc13783
- struct mc13783_regulator_priv.desc is (and was) unused and so can go
  away
- use cpp magic to initialize mc13783_regulators
- bring MODULE_LICENSE in sync with actual copyright
- minor style fixes

This allows not including mc13783-private.h which I intend to remove
soon.

Signed-off-by: Uwe Kleine-König <[email protected]>
Cc: Sascha Hauer <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Samuel Ortiz <[email protected]>
Acked-by: Mark Brown <[email protected]>
Signed-off-by: Liam Girdwood <[email protected]>