LU-3749 recovery: save versions from reply into lastrcvd

LU-3749 recovery: save versions from reply into lastrcvd

Fix bug with using the wrong buffer for reply versions.
Versions should be saved from rq_repmsg instead of rq_reqmsg.
This bug was introduced in commit
4f5830f769f9cc9bacfcdfee9de5962324fb5c81.

Test-Parameters: testgroup=review,failover
Signed-off-by: Mikhail Pershin <mike.pershin@intel.com>
Change-Id: I6881b5d23ec9349b8fe4e9a21e32a1c8be338182
Reviewed-on: http://review.whamcloud.com/7786
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>