serial: 8250_pnp: Switch to DEFINE_SIMPLE_DEV_PM_OPS()

The SIMPLE_DEV_PM_OPS() is deprecated, replace it with the
DEFINE_SIMPLE_DEV_PM_OPS() and use pm_sleep_ptr() for setting
the driver's PM routines.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240422083237.207447-1-andy.shevchenko@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>