drm/i915/dkl: convert intel_dkl_phy.[ch] to struct intel_display

Going forward, struct intel_display is the main display device data
pointer. Convert intel_dkl_phy.[ch] to struct intel_display.

Reviewed-by: Suraj Kandpal <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/fce[e-mail]
[Jani: Fix a missing include while applying]
Signed-off-by: Jani Nikula <[e-mail]>

drivers/gpu/drm/i915/display/intel_display_driver.c

···
 	mutex_init(&display->hdcp.hdcp_mutex);
 
 	intel_display_irq_init(i915);
-	intel_dkl_phy_init(i915);
+	intel_dkl_phy_init(display);
 	intel_color_init_hooks(display);
 	intel_init_cdclk_hooks(display);
 	intel_audio_hooks_init(display);

drivers/gpu/drm/i915/display/intel_dkl_phy.c

···
  * Copyright © 2022 Intel Corporation
  */
 
-#include "i915_drv.h"
+#include <drm/drm_device.h>
 
 #include "intel_de.h"
 #include "intel_display.h"
···
 
 /**
  * intel_dkl_phy_init - initialize Dekel PHY
- * @i915: i915 device instance
+ * @display: display device instance
  */
-void intel_dkl_phy_init(struct drm_i915_private *i915)
+void intel_dkl_phy_init(struct intel_display *display)
 {
-	spin_lock_init(&i915->display.dkl.phy_lock);
+	spin_lock_init(&display->dkl.phy_lock);
 }
 
 static void

drivers/gpu/drm/i915/display/intel_dkl_phy.h

···
 
 #include "intel_dkl_phy_regs.h"
 
-struct drm_i915_private;
 struct intel_display;
 
-void intel_dkl_phy_init(struct drm_i915_private *i915);
+void intel_dkl_phy_init(struct intel_display *display);
 u32
 intel_dkl_phy_read(struct intel_display *display, struct intel_dkl_phy_reg reg);
 void