drm/i915: Rename struct intel_crtc_config to intel_crtc_state

The objective is to make this structure usable with the atomic helpers,
so let's start with the rename. Patch generated with coccinelle:

@@ @@
-struct intel_crtc_config {
+struct intel_crtc_state {
...
}
@@ @@
-struct intel_crtc_config
+struct intel_crtc_state

v2: Completely generate the patch with cocci. (Ander)

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2d3355a..a80bd13 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -499,7 +499,7 @@
 
 struct intel_connector;
 struct intel_encoder;
-struct intel_crtc_config;
+struct intel_crtc_state;
 struct intel_plane_config;
 struct intel_crtc;
 struct intel_limit;
@@ -538,7 +538,7 @@
 	/* Returns the active state of the crtc, and if the crtc is active,
 	 * fills out the pipe-config with the hw state. */
 	bool (*get_pipe_config)(struct intel_crtc *,
-				struct intel_crtc_config *);
+				struct intel_crtc_state *);
 	void (*get_plane_config)(struct intel_crtc *,
 				 struct intel_plane_config *);
 	int (*crtc_compute_clock)(struct intel_crtc *crtc);