Updated git submodules

Updated git submodules

Project: genius master d0b037fbde7791c5d909c2ee1ffc86839965034e

Clean up ITM impl *Worker: Use "final" where possible, avoid parameters

Just a start, there is more TBD here re. static and all; e.g. the
Itm*Tunnel*Worker private static methods could probably be made
non-static and an the workers made to have an instance, or even just be
moved into the respective Itm*Worker classes, which seem to be the only
place using them.

This change was motivated by having had a closer look at this code due
to review comment in c/52871 to make something non-static which we
cannot yet easily, because of this.

Change-Id: Ib22ef6edb86ae50b1fe91bf68b9f85ad93dc612f
Signed-off-by: Michael Vorburger <vorburger@redhat.com>