Resolve #1160 Add ltv to sba pytests

• Related issues: #1160 (closed)
• Requested reviewers: @norvell @tamarapu

Reason why this change is needed

• Add ltv to sba pytests to improve coverage

Description of the change

• Add ltv tests to codec_on_mr_nonselection/test_sba.py
• Add cli option --use_ltv to run the ltv tests

Affected operating points

None