Input: s6sy761 - switch to SYSTEM_SLEEP_/RUNTIME_PM_OPS() and pm_ptr()

Input: s6sy761 - switch to SYSTEM_SLEEP_/RUNTIME_PM_OPS() and pm_ptr()

SET_SYSTEM_SLEEP_PM_OPS() and SET_RUNTIME_PM_OPS() are deprecated as
they require explicit protection against unused function warnings.
The new combination of pm_ptr() and SYSTEM_SLEEP_PM_OPS()/
RUNTIME_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.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Caleb Connolly <caleb@connolly.tech>
Cc: Andi Shyti <andi@etezian.org>
Tested-by: Caleb Connolly <caleb@connolly.tech> # oneplus-guacamole
Link: https://lore.kernel.org/r/20230114171620.42891-5-jic23@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>