[pnfs] Issue 57: pnfs: private layout range

[Benny Halevy]

There seems to be a typo in the change that went into the -05 draft:

Types within the range 0x00000000-0x7FFFFFFF are globally unique
...
Types within the range 0x8000000-0xFFFFFFFF are site specific

0x8000000 should have been
0x80000000


Benny