Change check for loadbalancer in skip_checks()

Runtest generates service_available section
for load balancer as 'load_balancer'

In other hand at the skip_checks in pike
we use 'loadbalancer' transcription

Change-Id: Id009fd153ea7265c0e48a6bef3ee1a557b63f664
Related-Prod:PROD-25925
2 files changed