add server_info cpus net_info api

Signed-off-by: mujunxiang <1948535941@qq.com>

madmin/src/net/net_linux.rs

@@ -0,0 +1,9 @@
+use super::NetInfo;
+
+pub fn get_net_info(addr: &str, iface: &str) -> NetInfo {
+    let mut ni = NetInfo::default();
+    ni.node_common.addr = addr.to_string();
+    ni.interface = iface.to_string();
+
+    ni
+}