Increase wait time for SSH capability
Increase wait time for SSH capability

many CI-driven integration tests time-out due
to this overly conservative timeout

asridharan/dcos,vishnu2kmohan/dcos,GoelDeepak/dcos,BenWhitehead/dcos,mellenburg/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/mergebot-test-dcos,surdy/dcos,amitaekbote/dcos,lingmann/dcos,lingmann/dcos,kensipe/dcos,BenWhitehead/dcos,dcos/dcos,dcos/dcos,lingmann/dcos,surdy/dcos,GoelDeepak/dcos,kensipe/dcos,asridharan/dcos,surdy/dcos,mesosphere-mergebot/mergebot-test-dcos,surdy/dcos,amitaekbote/dcos,branden/dcos,mellenburg/dcos,mesosphere-mergebot/mergebot-test-dcos,dcos/dcos,branden/dcos,mesosphere-mergebot/mergebot-test-dcos,amitaekbote/dcos,branden/dcos,mellenburg/dcos,BenWhitehead/dcos,BenWhitehead/dcos,vishnu2kmohan/dcos,amitaekbote/dcos,branden/dcos,mesosphere-mergebot/dcos,vishnu2kmohan/dcos,dcos/dcos,mellenburg/dcos,asridharan/dcos,vishnu2kmohan/dcos,mesosphere-mergebot/dcos,kensipe/dcos,mesosphere-mergebot/dcos,kensipe/dcos,GoelDeepak/dcos,dcos/dcos,lingmann/dcos,GoelDeepak/dcos,asridharan/dcos