Otherwise processes using the link like "ping" or "iperf3" may fail
because there's still no IP address assigned.
Change-Id: I28137f10a19db01fe90b24830a60342a448d1e92
rename UE helper functions to query RRC connected/idle state
and adapt tests accordingly
also add helper to retrieve assinged IP address
Change-Id: I6cd057e34b4df6a1a73695355dd6406d7e039546
This content is mostly specific to sysmocom's setup (thought it can
still be re-used by other people if willing to).
symlinks in ttcn3/ pointing to example/ are redone to point to
sysmocom/.
Change-Id: I364e0859c0851b9167907a4d948b659a0f6a19fb