Increase timeout for gtest runs.

The bionic unit test timeout was increased from 60 seconds to 90 seconds.
However, the timeout in the test runner was still 60 seconds. This CL
increases the timeout to 90 seconds.

Bug: 25750943
Change-Id: Ieabd4dbf779559e5a3ac87d33d83f9c29fe05d64
1 file changed