leds: ncp5623: Add MS suffix to time defines

To make the time macro defines clearer, add MS as a suffix.

Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Link: https://lore.kernel.org/r/20240305133824.1551809-1-alkuor@gmail.com


Signed-off-by: Lee Jones <lee@kernel.org>