Catch up on FBSD releases

Catch up on FBSD releases

Add param.foo.h and sysname entries for the past and forthcoming
FreeBSD 7.2, 7.3, 7.4, and 8.2 releases.  Also update the
MakefileProto.FBSD.ins that need touching, simplifying the libuafs
one in the process.

Reviewed-on: http://gerrit.openafs.org/3389
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit a4e4ed9de93d202d21cab4c40d37fcfacc85694e)
Change-Id: Icccc9f116c707a9af776f59231fc4999865b6344
Reviewed-on: http://gerrit.openafs.org/3457
Tested-by: Derrick Brashear <shadow@dementia.org>