Fix crash due to iteratively calling radio_remove_works()

Fix crash due to iteratively calling radio_remove_works()

Commit 3242793cb8df ("P2P: Remove pending p2p-listen radio work on
stopping listen") added removal of all pending p2p-listen radio works
when P2P listen is stopped. But in case where p2p-listen radio work is
pending with work->started=1 and radio_remove_works() is called (e.g.,
as part of interface disabling), there is an attempt to remove radio
work iteratively from wpas_stop_listen() causing a crash.

To avoid this, add check to avoid iterative calls to wpas_stop_listen().

Signed-off-by: Shivani Baranwal <quic_shivbara@quicinc.com>