Block allocateBackup if the node is not secure node. am: 996be3eef1 am: 2bebd9c7f5 am: 395ec8c4af am: 238f43188a am: 0a78e48503 am: ff286981c5  -s ours am: d7d971edb4  -s ours am: 6f8cfdcb21  -s ours am: 5511f6b6af  -s ours am: ff21c08650  -s ours
am: 81baac0cb5  -s ours

Change-Id: Ib91b8dfb4fc0b46a1213b99d292e4ae3b06344d2