[mgmt-framework] start after syncd (sonic-net#4174)

every service starts after syncd to start the most critical parts first

Signed-off-by: Stepan Blyschak <stepanb@mellanox.com>

files/build_templates/mgmt-framework.service.j2

@@ -1,7 +1,7 @@
 [Unit]
 Description=Management Framework container
 Requires=swss.service
-After=swss.service
+After=swss.service syncd.service
 Before=ntp-config.service
 
 [Service]