[DO NOT MERGE] Add API level check for GTS on 12L only

The test should only run in GTS for sc-v2 devices. Add api level check
to skip the test if the device is on an older version.

Test: run gts -m CtsWidgetTestCases
Bug: 229928909
Bug: 212643340
Change-Id: I2b6d8556c35ffdfc46dff1b4fac51477d312401c
1 file changed