* mgw: Update to contain similar config from docker-playground.git
* mgw: Fix f_two_crcx_mdcx_and_rtp_osmux()
* mgw: Remove hack in f_two_crcx_mdcx_and_rtp_osmux() no longer needed
* mgw: Introduce test TC_crcx_osmux_257
* fr: TC_bvc_bringup
* fr: Generalize and document functions
* fr: Add component id in logs; add 15s timeout waiting for BVC-UNBLOCK
* fr: Make TC_foo() actually terminate
* fr: Implement per-UE guard timeout
* fr: Don't wait indefinitely, but wait until all UE components terminate
* BSSGP_Emulation: Support up to 64 BVCs with 64 users each
* NS_Emulation: Handle NS_PROV_LINK_STATUS_DOWN
* deps: Use latest version of AF_PACKET
* deps/SCTPasp: Update to master (uses epoll instead of select)
* sgsn: Add test cases to verify SABM handling on LLGMM + LL5
* sgsn: Add TC_llc_null to test if SGSN survives a LLC NULL packet
* LLC_Templates: Add templates for NULL and DISC
* deps/Makefile: Use osmocom fork of LLC protocol module
* LLC_Templates: Add SABM, UA, FRMR, DM templates