MAINTAINERS: Sort entries in database for X-POWERS AXP288

Run parse-maintainers.pl and choose X-POWERS AXP288 record. Fix it accordingly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>