ttcn3-bsc-test/jenkins-sccplite.sh: configure 4 TRX for BTS2
This is another fixup for [1]. I didn't notice that the sccplite
variant of ttcn3-bsc-test has its own copy of jenkins.sh.
Change-Id: I21219724adbeda4166963b4940b08aad281a62cb
Fixes: [1] Iba4fbd5c9ed59783df4ac64e68b2beef73a812ff
Related: SYS#5460
