Loose the rapid activity launch policy

In commit d0025f1e, the rapid activity launch policy is too
aggressive that impacts some valid use cases, like running
test or applications that use many trampoline activities.

No good approach to identify whether the rapid launch is a
valid use case or not. Loose the rapid activity launch
policy so that at least we do catch the repeatedly activity
launch on an unreasonable amount.

Bug: 332779437
Bug: 337792773
Test: wm presubmit
Change-Id: I2cb218f3d31b8e020d54d63b94aa58c76ad7075f