linux-phytec-ti

gpio; Make Intel chipset gpio drivers depend on x86

Nothing outside of x86 can use that code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>