drm/xe: fix kernel-doc issues

drivers/gpu/drm/xe/xe_guc_submit_types.h:47: warning: cannot understand
function prototype: 'struct guc_submit_parallel_scratch '

drivers/gpu/drm/xe/xe_devcoredump_types.h:38: warning: Function
parameter or member 'ct' not described in 'xe_devcoredump_snapshot'

CI doesn't appear to be running BAT anymore, assuming this is caused by
the CI.Hooks now failing due to above warnings.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_devcoredump_types.h

@@ -27,7 +27,7 @@ struct xe_devcoredump_snapshot {
 	ktime_t boot_time;
 
 	/* GuC snapshots */
-	/** @ct_snapshot: GuC CT snapshot */
+	/** @ct: GuC CT snapshot */
 	struct xe_guc_ct_snapshot *ct;
 	/** @ge: Guc Engine snapshot */
 	struct xe_guc_submit_engine_snapshot *ge;

drivers/gpu/drm/xe/xe_guc_submit_types.h

@@ -41,7 +41,7 @@ struct sync_semaphore {
 };
 
 /**
- * Struct guc_submit_parallel_scratch - A scratch shared mapped buffer.
+ * struct guc_submit_parallel_scratch - A scratch shared mapped buffer.
  */
 struct guc_submit_parallel_scratch {
 	/** @wq_desc: Guc scheduler workqueue descriptor */