drm/i915/ltphy: include intel_display_utils.h instead of i915_utils.h

Display code stopped using i915_utils.h in favour of
intel_display_utils.h. Fix recent additions.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20251112181342.107911-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Author: jnikula

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

@@ -6,14 +6,14 @@
 #include <drm/drm_print.h>
 
 #include "i915_reg.h"
-#include "i915_utils.h"
 #include "intel_cx0_phy.h"
 #include "intel_cx0_phy_regs.h"
 #include "intel_ddi.h"
 #include "intel_ddi_buf_trans.h"
 #include "intel_de.h"
 #include "intel_display.h"
 #include "intel_display_types.h"
+#include "intel_display_utils.h"
 #include "intel_dpll_mgr.h"
 #include "intel_hdmi.h"
 #include "intel_lt_phy.h"