For multi-SAP case, after get pcl channel list, also call
wlansap_select_chan_with_best_bandwidth() to get best bandwidth
channel so that don't shrink bandwidth after COEX happen.
For concurrency with STA/P2P mode, don't invoke above function and
take pcl channel as first priority.
Change-Id: Ie211f87728d445aad8d806a1025fb76b4c6dccf0
CRs-Fixed: 3491478