LU-10391 obdclass: truncate large uuids

LU-10391 obdclass: truncate large uuids

With large NIDs it is now possible for UUIDs, based on NID strings, to
exceed UUID_MAX length. To handle this, these large NID strings are
truncated.

Test-Parameters: trivial testlist=conf-sanity
Signed-off-by: Chris Horn <chris.horn@hpe.com>
Change-Id: Ic6b9310c9bf8a598e3cc87575c85f43ef4577345
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55767
Reviewed-by: Timothy Day <timday@amazon.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>