ubik: build all files for pthread version

ubik: build all files for pthread version

Build all files for pthreads from the ubik directory.
No longer require src/tubik/NTMakefile.
Add missing library to tbutc linkage requirements.

Change-Id: If517ce528e5dde9b600824897e1304949b2c2719
Reviewed-on: http://gerrit.openafs.org/4150
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>