power: supply: rt9471: Simplify definition of some struct linear_range

Use LINEAR_RANGE() instead of hand-writing it. It is less verbose.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0da94193c5f8b35fa98f25a852d74b841670bd6e.1746197233.git.christophe.jaillet@wanadoo.fr


Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>