RESTRICT AUTOMERGE: Relax focus event timeout

Similar change has been applied to this test in mainline via ag/24227423
and ag/30414257. For android 14 branch, apply a standalone change to
prevent a chain of merge conflicts and the need to cherry-pick.

Bug: 350743614
Test: IncompleteMotionTest passes reliably on device
Change-Id: Id1a598298009316c27b02b0e2b5bd931d25b079b