drivers/ipack/devices/ipoctal.h: Fix typo in include guard

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>