Since rev 1.1 ix has attempted to require a 64 bit BAR, the test for

Since rev 1.1 ix has attempted to require a 64 bit BAR, the test for
this was wrong and was corrected at the end of last year in rev 1.140.
Before then a 64 bit BAR was not enforced as the test was wrong.

It turns out there exist 82598 parts which have a 32 bit BAR so change
the test to only require a memory BAR and not a 64 bit memory BAR.

Problem reported by Robert Blacquiere. ok mikeb@