ACPI / utils: Update acpi_check_dsm() comments

Update function comments.
Signed-off-by: NYijing Wang <wangyijing@huawei.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/utils.c

@@ -661,7 +661,6 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
  * @uuid: UUID of requested functions, should be 16 bytes at least
  * @rev: revision number of requested functions
  * @funcs: bitmap of requested functions
- * @exclude: excluding special value, used to support i915 and nouveau
  *
  * Evaluate device's _DSM method to check whether it supports requested
  * functions. Currently only support 64 functions at maximum, should be