Replace HWLOC_CPUSUBSET_VAL() with HWLOC_CPUSUBSET_CPU() and HWLOC_CPUSUBSET_ULBIT() to make it clear when using cpu index or bits within a single unsigned long.
Replace HWLOC_CPUSUBSET_VAL() with HWLOC_CPUSUBSET_CPU() and HWLOC_CPUSUBSET_ULBIT()
to make it clear when using cpu index or bits within a single unsigned long.

git-svn-id: 6d43b54343b7988abf63e6b0e17d1e9059e59404@1934 4b44e086-7f34-40ce-a3bd-00e031736276

BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc