LU-1434 utils: Add better handling for normal lustre packets

LU-1434 utils: Add better handling for normal lustre packets

This fixes handling for Lustre packets (lustre 2.1) for more packet
types and fixes some packet types that were being mis-interpreted.

Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Change-Id: Ib6fcf99a93efc41a0cad3457da8009522c68d248
Reviewed-on: http://review.whamcloud.com/4852
Tested-by: Hudson
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>