monitoring: Add utilization to slu entity
monitoring: Add utilization to slu entity

Add utilization to slu entity

Change-Id: I51a66e3f1695d3a7fc52189f6b6c87836e00b83e
Signed-off-by: anmolbabu <3d38fb1e9c5ff2662fc415254efcdfedb95b84d5@gmail.com>

skyrings/skyring-common,skyrings/skyring-common