qcacmn: Set WMI_CHAN_FLAG_DFS flag only in ap mode

Currently on vdev start WMI_CHAN_FLAG_DFS flag is being set
irrespective of the device mode which may lead to unexpected
behavior in FW.

To address above issue set WMI_CHAN_FLAG_DFS flag in vdev
start only if vdev is operating in ap mode.

Change-Id: I96b291ad137b96e40c6620c86f50860670595ae0
CRs-Fixed: 2808013
1 file changed