[procdockerstatsd] Fix incorrect case issue in service file (#4134)

Author: pra-moh

files/image_config/procdockerstatsd/procdockerstatsd.service

@@ -6,7 +6,7 @@ After=database.service updategraph.service
 [Service]
 Type=simple
 ExecStart=/usr/bin/procdockerstatsd
-Restart=Always
+Restart=always
 
 [Install]
 WantedBy=multi-user.target