Drift: colocate attributes

[jjhursey]

https://github.com/openpmix/pmix-tests/blob/08705b12294fc5020f2af951b9bb10b36b6cec8d/check-standard/etc/openpmix_master-pmix-standard_master.txt#L101-L108

#---------------------------------------------------------
# Needs Review:
#  OpenPMIx: 137cc3d6b
#  OpenPMIx PR: 
#---------------------------------------------------------
PMIX_COLOCATE_NPERNODE
PMIX_COLOCATE_NPERPROC
PMIX_COLOCATE_PROCS