Harden remapCameraApi() API

- Pluralize list fields, it is easier
  to work with.
- Change String[] to List<String>. This
  has no effect on the cpp handling, it
  just makes the java client code easier
  to work with.
- Check against more edge cases.
- Fix small bug in parsing found after
  E2E testing (pass argument by reference)

Bug: 286287541
Test: Tested the binder calls using custom service.
      Was able to trigger all edge cases.
Change-Id: I176959e56563bc587c4fca594cfc242941b503d6