qcacld-3.0: Do not change channel BW if channel is 0 in HT info
Do not change channel BW if channel is 0 in HT info, As this will
cause invalid channel and phymode sent to firmware and result into
crash.
Change-Id: Ia629314b9ced299afa5d89092d0a9fc5c7cb6b4c
CRs-Fixed: 2065143