BSC_Tests: fix f_mo_l3_transceive(): relax DLCI matching

Since If4d479a54cad467f53b49065c1c435a4471ac7d2, osmo-bsc started
to send more concrete DLCI values on the A/BSSAP interface.  In
particular, the control channel identification bits now indicate
whether it's SDCCH/FACCH or SACCH channel.

Let's use '?' as the default DLCI template that we expect to get
from the IUT, so those test cases, for which DLCI is not a part
of the testing scenario, would not fail.

Change-Id: Ida659d53e0d31f9aa0ea2ccccefc94d8c659eb76
1 file changed