Move incorrect error printing
Move incorrect error printing

The error message is printed for every none router port
but VM ports are also synced.
move the printing to the correct place and change severity
to info

Change-Id: I9c79758d31dc7450af36405029565802e149f93f
Closes-Bug: #1432303

FrankDuan/df_code,FrankDuan/df_code,neoareslinux/dragonflow,neoareslinux/dragonflow,no2key/dragonflow,openstack/dragonflow,FrankDuan/df_code,openstack/dragonflow,no2key/dragonflow,openstack/dragonflow