having a short session with camerapi2 for my XA2 again...
I can build cameraapi1, I even deployed it and it works.
Now i switched the branch, ran a make clean and it fails now with:
```
frameworks/av/camera/ndk/include/camera/NdkCameraCaptureSession.h:170:15: error: unknown type name 'ACaptureRequest'
        const ACaptureRequest* request, int64_t timestamp);