Generalize exception thrown by fromBundle

It allows Bundleable classes throw a RuntimeException which is broader
than IAE. Now, Bundleable implementation may utilize checkNotNull for
brevity.

PiperOrigin-RevId: 357546375

library/common/src/main/java/com/google/android/exoplayer2/Bundleable.java

@@ -64,7 +64,7 @@ public interface Bundleable {
      *
      * <p>It guarantees the compatibility of {@link Bundle} representations produced by different
      * versions of {@link Bundleable#toBundle()} by providing best default values for missing
-     * fields. It may throw an {@link IllegalArgumentException} if any essential fields are missing.
+     * fields. It throws an exception if any essential fields are missing.
      */
     T fromBundle(Bundle bundle);
   }