ubik: add lock initialization function

ubik: add lock initialization function

Add a new lock initialization function and call it from the
initialization sequence.  Users of the locks can assume that
they are already initialized.

Change-Id: I8e86f460cb705c8de12bac9367358c93f1423591
Reviewed-on: http://gerrit.openafs.org/4141
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>