Merge branch 'drm-udl-next' of git://people.freedesktop.org/~airlied/linux into drm-next

A set of cleanups and fixes for Mikulas for using udl on arm boards.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAPM=9twQNgrmfe0=Okq1NTgWHRQXy+AzeDy8A0p_-y856p4vtA@mail.gmail.com