A2DP Offload: Avoid Offload_start/stop from remote

When DUT is A2DP Source, and remote initiates start
we suspend it immediately. There is no need to do
Offload_start/stop in this case. Also, the offload
start/stop was coming out of sync here.

Bug: 80284000
Test: Manual
Change-Id: If54c28188e7432ebcba639cd2fbfe81536c2f2e6