qcacmn: Fixes for master channel list

When a new master channel list is created, populate master chan list to all
pdevs. Do not make any assumption on availability of pdevs. Make other
stability and initialization fixes. Also add extra fields to data
structures.

Change-Id: I0a59c41e9425435f6069807a3c5de0b389d8fa5e
CRs-Fixed: 2002892

wmi_unified_tlv.c

@@ -17174,6 +17174,7 @@ static QDF_STATUS extract_reg_chan_list_update_event_tlv(
 			REG_ALPHA2_LEN);
 	reg_info->dfs_region = chan_list_event_hdr->dfs_region;
 	reg_info->phybitmap = chan_list_event_hdr->phybitmap;
+	reg_info->offload_enabled = true;
 	reg_info->min_bw_2g = chan_list_event_hdr->min_bw_2g;
 	reg_info->max_bw_2g = chan_list_event_hdr->max_bw_2g;
 	reg_info->min_bw_5g = chan_list_event_hdr->min_bw_5g;