Fix some code relative to chips that don't currently work (BCM5722 & BCM5756).  They still don't work but when they do they won't use an inappropriate Jitter bug workaround. No effect on other chips.
Fix some code relative to chips that don't currently work (BCM5722 &
BCM5756).  They still don't work but when they do they won't use an
inappropriate Jitter bug workaround. No effect on other chips.

From Michael Chan of Broadcom, via Linux tg3 via Brad.

ok reyk@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars