Replace bits of libutil with libroken

Replace bits of libutil with libroken

Replace all of the bits of libutil that were originally culled
from libroken with libroken originals.

Change-Id: I361d7a8d134a361caa2da16963408c74c55a1d4e
Reviewed-on: http://gerrit.openafs.org/3211
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>