Fix tests by specifying flag values.

These tests were failing when the flag started being rolled out.

Flag: EXEMPT test only
Bug: 399446348
Test: atest WmTests:CameraCompatFreeformPolicyTests
Test: atest WmTests:ActivityRecordTests
Test: ran above tests with flag on and off on the device.
Change-Id: I52c1bb6f1a8780633a49b8cfe72e0239ecb10e58