Camera: Enable SurfaceView extension output

Allow Camera2 extension clients to register and use
SurfaceView outputs.

Bug: 245406932
Test:atest -c -d
cts/tests/camera/src/android/hardware/camera2/cts/CameraExtensionCharacteristicsTest.java
atest -c -d
cts/tests/camera/src/android/hardware/camera2/cts/CameraExtensionSessionTest.java
atest -c -d
cts/tests/camera/src/android/hardware/camera2/cts/SurfaceViewExtensionPreviewTest.java

Change-Id: I7b07f3312addea2bc0685b2f1167f17410a5174f