monitoring: Add new line to network.conf formula
monitoring: Add new line to network.conf formula

The new line was missed and w/o this collectd fails
to restart.

Change-Id: I3117b0ecef04e793d045bb097609ab860b69d3f4
Signed-off-by: anmolbabu <3d38fb1e9c5ff2662fc415254efcdfedb95b84d5@gmail.com>

skyrings/skyring,skyrings/skyring,skyrings/skyring,skyrings/skyring