mfd: rt5033: Fix comments and style in includes

Fix comments and remove some empty lines in rt5033-private.h. Align struct
rt5033_charger in rt5033.h.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/606950da6f4b36f5a124ff13756c78644fc89804.1677620677.git.jahau@rocketmail.com