staging: lustre: ptlrpc: replay bulk request

Even though the server might already got the bulk
replay request, but bulk transfer timeout, let's
replay the bulk request, i.e. treat such replay as
same as no replied replay request (See
ptlrpc_replay_interpret()).

Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6924
Reviewed-on: http://review.whamcloud.com/15793


Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>