TIF: Improve the reliability of the TvInputManagerHostTest.

Sometimes the we can't get the log from onInputUpdated because of timing
issue, that will cause the test failed. Adding a thread sleep to wait for
the log to improve the reliability of the test.

Bug: 28857014
Change-Id: Ic4064f48431ad1a6cd60ad095d9f26b2cef60b44
1 file changed