LU-56 lnet: wrong assertion for optimized GET

LU-56 lnet: wrong assertion for optimized GET

Event type of optimized GET/REPLY will not match message type,
lnet_msg_decommit_rx() did correct assetion for optimzed REPLY,
but wrong assertion for optimized GET.
this patch also removed another wrong assertion in lnet_finalize()

Both wrong assertions are introduced by this commit:
75a8f4b4aa9ad6bf697aedece539e62111e9029a

Test-Parameters: no_virtualization=true nettype=o2ib
Signed-off-by: Liang Zhen <liang@whamcloud.com>
Change-Id: I089c091819c05e27a8b13cf378a60d6fe64cb849
Reviewed-on: http://review.whamcloud.com/3238
Reviewed-by: Doug Oucharek <doug@whamcloud.com>
Tested-by: Hudson
Reviewed-by: Bobi Jam <bobijam@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>