[TASK][Channel scan] use AP Radio Basic Capabilities TLV to validate channel pool

[kantera800]

currently channel pool validated by static table supported_channels_array[] of channels in db::set_dcs_channel_pool()

This is incorrect since radio setup could vary with different country configuration.

We need permanent and generic prplMesh solution:

• refactor read_supported_channels to use get_radio_info [TASK] Refactor read_supported_channels to use nl80211_client::get_radio_info #1024 (PR bwl: refactor read_supported_channels to use get_radio_info #1043)
• update Radio Basic Capabilities TLV using the new supported_channels (PR bwl: update basic radio capabilities #1065)
• [bug] missing channels when using nl80211_client::get_radio_info [BUG] bwl: missing channels when using nl80211_client::get_radio_info  #1046 (PR [BUG] bwl: missing channels when using nl80211_client::get_radio_info #1053)
• use supported_channels from AP Radio Basic Capabilities data for channel scan pool validation in db instead of static table (PR Feature/channel pool validation #1093)

poc PR - do not merge #941

[arnout]

create new structure in node.h std::vector<beerocks_message::sWifiChannel> phy_supported_channels
save GET_HW_FEATURES report during in slave_join to DB.

This is exactly what ap_wlan_hal->read_supported_channels() does, no? So what exactly needs to be done here?

[kantera800]

create new structure in node.h std::vector<beerocks_message::sWifiChannel> phy_supported_channels
save GET_HW_FEATURES report during in slave_join to DB.

This is exactly what ap_wlan_hal->read_supported_channels() does, no? So what exactly needs to be done here?

in case we are currently on a static channel and we want to scan , read_supported_channels() returns just this channel.
also , i heard that read_supported_channels() is not going to be used soon.
we need to store in the db latest channel list that fw supports for the dcs feature.