Fix PCIe 3.0 speed computation
Fix PCIe 3.0 speed computation

This commit was SVN r4544.

shekkbuilder/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc