Ignore ramcloud from coverage
Ignore ramcloud from coverage

Change-Id: I57b9445b103fbde47d8f584c58d75f68c04dd3d7

opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open,opennetworkinglab/spring-open