linux-wandboard

drm/radeon/kms/atom: add a helper function to get the radeon connector priv

This is used in a lot of places in the atom encoder code.

While here fix the spelling of crtc_source_params.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>