LU-1492 utils: cleanup wirecheck for ptlrpc_body

LU-1492 utils: cleanup wirecheck for ptlrpc_body

Added check for the consistency of ptlrpc_body_v3 & ptlrpc_body_v2,
minor fix in ptlrpc_body checking & copyright for in wirehdr.c.

Signed-off-by: Niu Yawei <niu@whamcloud.com>
Change-Id: I84d756fcccd63400a144dd96b24df7c6364498e5
Reviewed-on: http://review.whamcloud.com/3057
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Lai Siyao <laisiyao@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>