[interfaces]: Restart networking service after the file is updated (#430)

Signed-off-by: Shuotian Cheng <[email protected]>

Author: Shuotian Cheng

files/image_config/interfaces/interfaces-config.sh

@@ -1,6 +1,4 @@
 #!/bin/bash
 
 sonic-cfggen -m /etc/sonic/minigraph.xml -t /usr/share/sonic/templates/interfaces.j2 >/etc/network/interfaces
-ifdown eth0 && ifup eth0
-ifdown lo && ifup lo
-
+service networking restart