comerr: Fix a couple of libtool problems

comerr: Fix a couple of libtool problems

The comerr libtool patch was submitted before buildbot had a chance
to verify it. Fix a couple of problems that buildbot identified:

*) On AIX liboafs_comerr needs to link against roken
*) On OpenSuSe the LWP CC command has a space in it, so needs to
   be quoted before being passed in to lwptool

Change-Id: I885099f57ef670ed58d532162b1cb70316744b28
Reviewed-on: http://gerrit.openafs.org/8059
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>