LU-6142 selftest: remove typedefs from lnet selftest

LU-6142 selftest: remove typedefs from lnet selftest

Change the typedefs in lnet selftest to proper structures.
Several other style changes to fix checkpatch issues with
code impacted by tyepdef change.

Test-Parameters: testlist=lnet-selftest

Change-Id: I941d460566673ccb5bccad9f3506f90ede47ed67
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: https://review.whamcloud.com/27298
Reviewed-by: Doug Oucharek <doug@cadentcomputing.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Olaf Weber <olaf.weber@hpe.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>