CBQE-0: MB-9551-Increase timeout for checking couchApiBase

Change-Id: Iab99fbb8f9231b5af8649a18a67f6e90bdfbed15
Reviewed-on: http://review.couchbase.org/30751
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>