Floss: Don't retry sco settings if we are not initiator

It should be initiator's responsibility to retry the sco settings.

This patch will be needed to pass HFP/AG/ACS/BI-13-C once we allow CVSD
fallback to S1.

Bug: 324157546
Bug: 332650199
Test: Run above qualification tests
Test: m -j
Tag: #floss
Change-Id: I5500470dd3dea7e016978e3b29763978e1f8a84e