cc3220: 2.19+ crash on void mgos_conf_free_str(const char **sp)

[Sekilsgs2]

Board cc3220 On 2.19+ fw crashes when running function from
mongoose-os/src/mgos_sys_config.c

mgos_sys_config_set_device_id(device_id);

[Sekilsgs2]

Reason finded -

bool mgos_config_is_default_str(const char *s) {
  int num_str = (sizeof(mgos_config_str_table) / sizeof(mgos_config_str_table[0]));
  for (int i = 0; i < num_str; i++) {
    if (mgos_config_str_table[i] == s) return true; 
  }
  return false;
}

For cc3220 after mgos_config_set_defaults(cfg) - this comparsion not working and FW try free and cause crash