drm/i915/power: move enum skl_power_gate under display

When the display registers were split off from i915_reg.h, enum
skl_power_gate was left behind. Move it to intel_display_regs.h.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/495054983b74163ca7dcbf5a1b6a24099047bc64.1750855148.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -2195,6 +2195,15 @@
 #define   HSW_PWR_WELL_FORCE_ON			(1 << 19)
 #define HSW_PWR_WELL_CTL6			_MMIO(0x45414)
 
+/* SKL Fuse Status */
+enum skl_power_gate {
+	SKL_PG0,
+	SKL_PG1,
+	SKL_PG2,
+	ICL_PG3,
+	ICL_PG4,
+};
+
 #define SKL_FUSE_STATUS				_MMIO(0x42000)
 #define  SKL_FUSE_DOWNLOAD_STATUS		(1 << 31)
 /*

drivers/gpu/drm/i915/i915_reg.h

@@ -1203,16 +1203,6 @@
  */
 #define GEN7_SO_WRITE_OFFSET(n)		_MMIO(0x5280 + (n) * 4)
 
-/* SKL Fuse Status */
-enum skl_power_gate {
-	SKL_PG0,
-	SKL_PG1,
-	SKL_PG2,
-	ICL_PG3,
-	ICL_PG4,
-};
-
-
 #define GEN9_TIMESTAMP_OVERRIDE				_MMIO(0x44074)
 #define  GEN9_TIMESTAMP_OVERRIDE_US_COUNTER_DIVIDER_SHIFT	0
 #define  GEN9_TIMESTAMP_OVERRIDE_US_COUNTER_DIVIDER_MASK	0x3ff