Use new DevicePolicyConstant to indicate that the testOnly admin should be used as the supervision component.

Previously the testOnly admin was always used as the supervision component, but now that this behavior is conditional, we need to set the constant in our test.

Bug: 176212263
Test: atest -c 'CtsDevicePolicyManagerTestCases:com.android.cts.devicepolicy.MixedProfileOwnerTest'
temp

Change-Id: Ic8ba71b337c9ae7ed8567e5660cc2d52bf7aa5da
1 file changed