spi: st: fix PM macros to use CONFIG_PM instead of CONFIG_PM_SLEEP

spi: st: fix PM macros to use CONFIG_PM instead of CONFIG_PM_SLEEP

pm_sleep_ptr() depends on CONFIG_PM_SLEEP while pm_ptr() depends on
CONFIG_PM.  Since ST SSC4 implements runtime PM it makes sense using
pm_ptr() here.

For the same reason replace PM macros that use CONFIG_PM.  Doing so
prevents from using __maybe_unused attribute of runtime PM functions.

Link: https://lore.kernel.org/lkml/CAMuHMdX9nkROkAJJ5odv4qOWe0bFTmaFs=Rfxsfuc9+DT-bsEQ@mail.gmail.com
Fixes: 6f8584a4826f ("spi: st: Switch from CONFIG_PM_SLEEP guards to pm_sleep_ptr()")
Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250820180310.9605-1-rgallaispou@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>