Changes

ttcn3-cbc: Adapt ports in osmo-cbc.git to default ttcn3 ones

This is intended to ease adding new emulated MMEs and BSCs by using next
available port strting from the one defined in the TTCN3 test module
parameter.

Requires: osmo-ttcn3-hacks.git Ib443aba9396aebe0a56b1a79719bbcf66302a1aa
Change-Id: Ib1387284c8f361572057b6d036429366238382a6

ttcn3-cbc: Disable gsmtap_log debug for dasn1c category

This category prints incredibly large output of ASN1c encoder/decoder,
which clogs the logging subsystem while debugging general issues.
Since the encoder/decoder is somehow determenistic, let's disable
logging all the debugging; it can be enabled by the user when
specifically debugging any enc/dec related issue.

Change-Id: I53cc2fe717fa70a8f187788fc4d31d28e0d4e98a