Allow temporary locked OHM function disabled when keyguard visible

- User is easier to mis-trigger OHM when keyguard showing
  it's make sense to disabled OHM when keyguard showing
- Resolve OneHandedControllerTest flaky

Test: atest WMShellUnitTests
Test: manual enable OHM, when keyguard showing OHM can not trigger
Bug: 179044949
Bug: 180682204
Change-Id: I59399e35c7f7bc895df006f54b43e572a9463fd1