qcacld-3.0: Avoid to start ROC with invalid duration

Up layer tx probe response frame with wait/duration 0, which may be
start ROC with duration 0 and then tx mgmt frame fail since of very
short ROC and no enough time to wait for tx ack.

Change-Id: I5243ff10726b642d8cf18992a230d741f9d2655f
CRs-Fixed: 2397719
3 files changed