Increase cooldown in test_asg_cooldown

Sometimes signal is received after 10 secs and the scaling
goes ahead. Would be good to set a bigger
cooldown time.

Change-Id: Ie1dd60c99842ff2c52a31d7c9439142b0c70afb5
Closes-Bug: #1696902
1 file changed
tree: 038f8818638c1e03fc56e8c57a48413c326ed22f
  1. api/
  2. common/
  3. functional/
  4. scenario/