qcacld-3.0: Wait for RSO stop response only if roaming is enabled

When host driver receives RSO_STOP from userspace, HDD sends the
RSO_STOP down to lower layers and starts a wait for response upon
success status.
Below layers(CSR) ignore the RSO_STOP request and
return success if the current state is not RSO_ENABLED or
IN_PROGRESS. This keeps the HDD waiting for response and a timeout
happens after 2 seconds.
So, wait for RSO stop response only if roaming is in enabled state
to avoid this wait and timeout.

Change-Id: I3ed81c5da26ebe05d17fc37dc43665f1f7b7c8b2
CRs-Fixed: 2901494