qcacld-3.0: Validate phymode before sending to firmware
Validate the phymode before sending to firmware in
lim_set_ch_phy_mode()
Change channel mode check from MODE_UNKNOWN to WLAN_PHYMODE_AUTO
or WLAN_PHYMODE_MAX
Change-Id: If7f869b750c74f9782b066f7e92b2c94c29bcbb7
CRs-Fixed: 2792691