Add JNI support for spoken language identification (#782)

android/SherpaOnnxAudioTagging/app/src/main/java/com/k2fsa/sherpa/onnx/audio/tagging/AudioTagging.kt

@@ -6,7 +6,7 @@ import android.util.Log
 private val TAG = "sherpa-onnx"
 
 data class OfflineZipformerAudioTaggingModelConfig(
-    val model: String,
+    var model: String,
 )
 
 data class AudioTaggingModelConfig(
@@ -134,4 +134,4 @@ fun getAudioTaggingConfig(type: Int, numThreads: Int=1): AudioTaggingConfig? {
     }
 
     return null
-}
+}