To check this with superiotool I have to be able to dump the "Runtime Registers", this is where the GPIO's are (See the SMSC lpc47m192 datasheet for more info). Currently superiotool does not dump these registers so modifications will be required.
I was relying on the new extended superiotool dumping functionality. That doesn't exist yet for your superio, so I should have written "...can find out with superiotool (once that has GPIO dumping support for your superio) and...". Thanks for correcting me.
I am working on this right now.....
Thanks - Joe