drm/i915: move cpu_transcoder to the pipe configuration

For a bunch of reason we need to more accurately track this:
- hw pipe state readout for Haswell needs the cpu transcoder.
- We need to know the right cpu transcoder in a bunch of places in
  ->disable and other modeset callbacks.

In the future we need to add hw state readout&check support, too. But
to avoid ugly merge conflicts do the rote sed job now without any
functional changes.

v2: Preserve the cpu_transcoder value when overwriting crtc->config.
Reported by Paulo.

Cc: Paulo Zanoni <przanoni@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
[danvet: Removed rough whitespace that Chris spotted.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 7b97b9a..b5b6d19 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -188,6 +188,10 @@
 	 * between pch encoders and cpu encoders. */
 	bool has_pch_encoder;
 
+	/* CPU Transcoder for the pipe. Currently this can only differ from the
+	 * pipe on Haswell (where we have a special eDP transcoder). */
+	enum transcoder cpu_transcoder;
+
 	/*
 	 * Use reduced/limited/broadcast rbg range, compressing from the full
 	 * range fed into the crtcs.
@@ -226,7 +230,6 @@
 	struct drm_crtc base;
 	enum pipe pipe;
 	enum plane plane;
-	enum transcoder cpu_transcoder;
 	u8 lut_r[256], lut_g[256], lut_b[256];
 	/*
 	 * Whether the crtc and the connected output pipeline is active. Implies