Update TV platform jank test with new launcher

UI interaction on new launcher is different from
the legacy launcher.
- No Settings row
- The System Row has the Settings button

Bug: 36811015
Bug: 36857789
Test: am instrument -w -r -e iterations 1 com.android.androidtv.janktests/android.test.InstrumentationTestRunner
Change-Id: Ide89e24753aa50ba1b81c89668d046c77615223c