In case of wide band scan, FW sends cca_busy_subband_info tlvs
via WMI_CHAN_INFO_EVENTID, which contains value of rx_clear_count
for each 20 MHz freq space.
Instead of doing average host should use max rx_clear_count for
each 20 MHz freq space to calculate channel load more accurately.
Fix is to calculate max rx_clear_count coming via above
tlvs and update same to cp stats component.
Change-Id: Ie9c472156bec11f5325aec407c40b70a12aa5871
CRs-Fixed: 3601484