Add param files for FreeBSD 10.2, 10.3

Add param files for FreeBSD 10.2, 10.3

FreeBSD 10.3 is in the beta stage now; better get ready for it.

Reviewed-on: https://gerrit.openafs.org/12222
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
(cherry picked from commit 02a393de6b30a500b77f276011c70d41eff363b5)
[updated to match the FreeBSD param.h files on openafs-stable-1_6_x]

Change-Id: Iae290edd29b34aa849f7422b48c765f81eb802fe
Reviewed-on: https://gerrit.openafs.org/12232
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>