Re-License under GPLv3-or-later instead of AGPLv3-or-later

The "Affero" nature makes sense for the Osmocom network components like
BSC, SGSN, etc. as they are typically operated to provide a network
service.

For testing, this doesn't make so much sense as it is difficult to
imagine people creating a business out of offering to run test cases on
an end-to-end Osmocom GSM network.  So let's drop the 'Affero' here.

All code is so far developed by sysmocom staff, so as Managing Director
of sysmocom I can effect such a license change unilaterally.

Change-Id: I8959c2d605854ffdc21cb29c0fe0e715685c4c05
27 files changed