drm/i915: fix CPU vs PCH eDP confusion

FDI training needs to done and idle for PCH eDP and before we turn the
pipes on, and various eDP checks need to account for PCH attached eDP.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
1 file changed