K 10
svn:author
V 8
gallatin
K 8
svn:date
V 27
2019-08-02T00:13:11.748118Z
K 7
svn:log
V 158
MFC r350245

pciconf: report PCI Gen4 speeds

PCIe gen4 runs at 16GT/s.  Report this as
the speed of Gen4 links.

Reviewed by:    imp
Sponsored by:   Netflix

END