Input: axp20x-pek - switch to SYSTEM_SLEEP_PM_OPS() and pm_sleep_ptr()

Input: axp20x-pek - switch to SYSTEM_SLEEP_PM_OPS() and pm_sleep_ptr()

SET_SYSTEM_SLEEP_PM_OPS() is deprecated as it requires explicit protection
against unused function warnings.  The new combination of pm_sleep_ptr()
and SYSTEM_SLEEP_PM_OPS() allows the compiler to see the functions,
thus suppressing the warning, but still allowing the unused code to be
removed. Thus also drop the __maybe_unused markings.  Here the
additional .resume_noirq callback is protected with pm_sleep_ptr(). This
isn't strictly necessary but is done for consistency with the other
callbacks.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230114171620.42891-3-jic23@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>