Add back AndroidVideoBuffer::CropAndScale

Now compatible with the recently added interface method
VideoFramebuffer::CropAndScale.

Bug: webrtc:11976
Change-Id: I461cf2de1d73ca953fda0ecad84d216b8b7ac879
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/187493
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32391}

sdk/android/api/org/webrtc/VideoFrame.java

@@ -54,6 +54,7 @@ public class VideoFrame implements RefCounted {
      * Crops a region defined by |cropx|, |cropY|, |cropWidth| and |cropHeight|. Scales it to size
      * |scaleWidth| x |scaleHeight|.
      */
+    @CalledByNative("Buffer")
     Buffer cropAndScale(
         int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight);
   }