[CI]add self test case for 7_1_4 with JBM

• Related issues: sa4/audio/ivas-basop#959 (closed)
• Requested reviewers:

Reason why this change is needed

• The bug in sa4/audio/ivas-basop#959 (closed) was not noted due to not testing 7_1_4 -> JBM

Description of the change

• Adds testcase for that

Affected operating points

• nothing, CI only