drm/i915: fix intel_display_irq.c include order

I meant to sort the includes before submitting commit 2b874a02
("drm/i915/irq: split out display irq handling") but forgot, and it
wasn't noticed in review either. Sort the includes.

Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230516122926.2720581-1-jani.nikula@intel.com

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

@@ -3,23 +3,23 @@
  * Copyright © 2023 Intel Corporation
  */
 
+#include "gt/intel_rps.h"
 #include "i915_drv.h"
 #include "i915_irq.h"
 #include "i915_reg.h"
 #include "icl_dsi_regs.h"
-#include "intel_display_irq.h"
-#include "intel_display_types.h"
-#include "intel_hotplug_irq.h"
-#include "intel_psr_regs.h"
 #include "intel_crtc.h"
+#include "intel_de.h"
+#include "intel_display_irq.h"
 #include "intel_display_trace.h"
+#include "intel_display_types.h"
 #include "intel_dp_aux.h"
-#include "intel_gmbus.h"
+#include "intel_fdi_regs.h"
 #include "intel_fifo_underrun.h"
+#include "intel_gmbus.h"
+#include "intel_hotplug_irq.h"
 #include "intel_psr.h"
-#include "intel_fdi_regs.h"
-#include "gt/intel_rps.h"
-#include "intel_de.h"
+#include "intel_psr_regs.h"
 
 static void
 intel_handle_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)