Camera: Add OutputConfiguration.setMirrorMode(Surface, mirrorMode)

This enables different mirroring modes between sharing surfaces within
the same OutputConfiguration.

Also removed a duplicated assignment statement in the constructor with
Parcel.

Flag: com.android.internal.camera.flags.mirror_mode_shared_surfaces
Test: atest MultiViewTest
Bug: 298899993
Change-Id: I9d76198cc91e51a00f73deb0a7b7e5010a7cb55b