ACPI utils provide acpi_dev_uid_to_integer() helper to extract _UID as
an integer. Use it instead of custom approach.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NArd Biesheuvel <ardb@kernel.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>