Use request's policy for syncing failed VSP tickets
Use request's policy for syncing failed VSP tickets

If the VSP client had already been created, with different accounts in
its global policy, these old accounts would have been used rather than
the intended accounts from the request.  By specifying the particular
policy to use when syncing each ticekt, this issue is avoided.

decred/dcrwallet,decred/dcrwallet