In API extract_roam_11kv_stats_tlv(), band info value is
fetched from wmi_roam_scan_info. This results in failure
during active mode when single tlv is sent for each event
as wmi_roam_scan_info tlv is not populated for event
expect for roam specific events.
Extract band info from wmi_roam_neighbor_report_info
tlv for neighbor report and BTM events in order
to overcome the above mentioned issue.
Change-Id: Ie53ec36ea1b788219b33f0956b489d5bbe0bb9b0
CRs-Fixed: 3631719
da8873f2bd