mfd: tqmx86: Improve gpio_irq module parameter description

Clarify that "7, 9, 12" refers to the valid arguments that can be
passed as gpio_irq.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/3275f436b66f6807c02256bc852d39b03ebd64d5.1731325758.git.matthias.schiffer@ew.tq-group.com


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