Add HBASE MASTER processes number validation
Add HBASE MASTER processes number validation

Because of the missing HBASE MASTER process number validation
during cluster creation, it takes too long for sahara to raise
the error too many HBASE MASTER processes.

Closes-Bug: #1656869

Change-Id: Id143eb2360366443a630f65fc6261231b562417c

egafford/sahara,tellesnobrega/sahara,tellesnobrega/sahara,openstack/sahara,openstack/sahara,egafford/sahara