Camera: Unhide OutputConfiguration getter functions

Unhide OutputConfiguration getter for configured size and format.

This makes it possible to call OutputConfiguration to get
configured sizes and formats even though the caller doesn't
create the OutputConfiguration.

Remove the unnecessary getConfiguredDataspace call because
dataspace isn't something configurable via OutputConfiguration.

Remove getSurfaceType call. It's not used.

Flag: com.android.internal.camera.flags.output_configuration_getter
Test: atest CameraDeviceTest
Bug: 419358672
Bug: 383609887
Change-Id: I907c3989fadabae590bb46802e758d080dc66782