[PATCH] x86: Mention PCI instead of RAM in NMI parity error message

On modern systems RAM errors don't cause NMIs, but it's usually
caused by PCI SERR. Mention PCI instead of RAM in the printk.

Reported by r_hayashi@ctc-g.co.jp (Ryutaro Hayashi)

Cc:  r_hayashi@ctc-g.co.jp

Signed-off-by: Andi Kleen <ak@suse.de>