Currently only keep func pointer for the followings:
- Invalid parameter (mesh btc & mesh stack)
- Out of memory (mesh btc & mesh stack)
- Unknown act (mesh btc)
- Invalid model user data (mesh stack)
- BT_DBG("%s", __func__) (mesh btc & mesh stack)
- A few other specific situations (buf ref debug, send status check)
Different bluetooth host has different behaviors, so it's better
to maintain a scan check mechanism of BLE Mesh itself.
Fixes an issue when only PB-GATT is enabled for node, which will
output a scan error log when the device is provisioned.
Using the ble mesh white list test functions, a node can choose to
only receive mesh messages from a specific node and relay the
messages for it. Messages from other nodes will be ignored.
