major config error on the fullnode config file

refer to the latest fullnode config, there  are   **p2p-max-nodes-per-host  = 100** and   **max-clients = 100**, with this config, the malicious  node could occupy all the incoming connections of the target node  with one node to make others unable to connect the target node that will be harmful to the network healthy, the correct config may be **p2p-max-nodes-per-host**  = 2