Use non-capability based appop for testing

The mode of camera app-op is affected by the UID's proc state, hence
startOp might fail when the app goes into background. Hence not use it
for testing unless necessary.

Bug: 147522610
Test: atest CtsAppOpsTestCases
Change-Id: I0b2e635e5e2a1c0994f4212e2210ac667b2d5ec1