Camera: Sync camera extension stubs

Sync the extension stubs to AndroidX commit:
226d33a4fec4a3b9d48c54b729055fa97a5c0e18

FLAG: EXEMPT mostly docs and annotations updates
Bug: 356073828
Test: Camera CTS

Change-Id: I6d08b6bb0bc7f58c1a892c2b8012857b861ac54a
41 files changed
tree: ef2407d3da03e3f1cb9d54d8e60b918159e6db5f
  1. camera2/
  2. common/
  3. framesequence/
  4. photoviewer/
  5. widget/
  6. CleanSpec.mk
  7. OWNERS