Camera: Fixes for OutputConfiguration.getConfiguredFormat

- Add missing HAL_PIXEL_FORMAT_YCBCR_422_I case
- Clean up format override for RGB output formats.
  RGB formats are overridden to PRIVATE if they have
  HARDWARE and no SOFTWARE_READ usage flags.

Flag: com.android.internal.camera.flags.surface_format_fix
Bug: 424865503
Test: Run CameraDeviceSetupTest
Change-Id: I985a0ee428ab6b8a5f02d5b0fa7da536aac53cfc