Since pm.h provides a helper for system no-IRQ PM callbacks,
switch the driver to use it instead of open coded variant.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230717172821.62827-4-andriy.shevchenko@linux.intel.comSigned-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>