Increase wait timeout for InputReader tests

Current timeout is not sufficient for some events on cuttlefish devices.
Increase the timeout and account for hardware multiplier to reduce
flakiness.

Test: atest inputflinger_tests:TouchIntegrationTest --rerun-until-failure 1000
Bug: 303677628
Flag: TEST_ONLY
Change-Id: I72a8b2e6884492192842bf9f6b192573cd408084