bsc: fix TC_reassignment_fr for SCCPlite test suite

In SCCPlite, there is only one DLCX. Turns out the DLCX doesn't have to
be part of the interlave, just call f_expect_dlcx_conns() which takes
care of AoIP vs SCCPlite expectations.

Related: SYS#4895
Change-Id: Id8931185dfa9f229ca7af033a97cabd040db0c2a
1 file changed