drm/i915: Rename plane_config to initial_plane_config

This vfunc and related structure are only used for fast boot, so let's
rename them to not take them as general purpose ones.

v2: Fix conflicts caused by the introduction of struct intel_crtc_state

Reviewed-By: Tvrtko Ursulin <tvrtko.ursulin@intel.com> (v1)
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Damien Lespiau <damien.lespiau@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 dd1cdc8..56fd2b8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -504,7 +504,7 @@
 struct intel_connector;
 struct intel_encoder;
 struct intel_crtc_state;
-struct intel_plane_config;
+struct intel_initial_plane_config;
 struct intel_crtc;
 struct intel_limit;
 struct dpll;
@@ -543,8 +543,8 @@
 	 * fills out the pipe-config with the hw state. */
 	bool (*get_pipe_config)(struct intel_crtc *,
 				struct intel_crtc_state *);
-	void (*get_plane_config)(struct intel_crtc *,
-				 struct intel_plane_config *);
+	void (*get_initial_plane_config)(struct intel_crtc *,
+					 struct intel_initial_plane_config *);
 	int (*crtc_compute_clock)(struct intel_crtc *crtc,
 				  struct intel_crtc_state *crtc_state);
 	void (*crtc_enable)(struct drm_crtc *crtc);