Merge tag 'extcon-next-for-3.20' of...

Merge tag 'extcon-next-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for v3.20

This patchset fix minor issue of extcon driver.

Detailed description for patchset:
- Remove duplicate header file in extcon-class.c and add 'const' keyword for
  array in extcon-max77693.c.
- Release iio channel when executing *_remove() function in extcon-adc-jack.c