[ExoV2 + Ambisonic] Adds ambisonic audio support to ExoV2.

Defines a new no_native_gvr build rule in ExoPlayerV2 that doesn't depend on the shared object in the VR sdk.

PiperOrigin-RevId: 302945930

extensions/gvr/src/main/java/com/google/android/exoplayer2/ext/gvr/GvrAudioProcessor.java

@@ -32,7 +32,7 @@ import java.nio.ByteOrder;
  *     href="https://github.com/google/ExoPlayer/issues">issue tracker</a>.
  */
 @Deprecated
-public final class GvrAudioProcessor implements AudioProcessor {
+public class GvrAudioProcessor implements AudioProcessor {
 
   static {
     ExoPlayerLibraryInfo.registerModule("goog.exo.gvr");