Fix functional test for startop.

* Enable perfetto tracing and readahead for testing.
* Extend time limit for JUnit test to 5min.

Bug: 148936893
Test: run atest iorap-functional-tests on Forrest
Change-Id: Iad2b2201abf7736a9c86e4e5f7c1579eb78b2e23
2 files changed