Replace effect_callback_t to refactor

Test: Compiles
Bug: 199156212
Change-Id: I387995cca89b23b96d7662968be81b16d1139df8
diff --git a/media/jni/audioeffect/Visualizer.cpp b/media/jni/audioeffect/Visualizer.cpp
index 84a8d51..193a5d4 100644
--- a/media/jni/audioeffect/Visualizer.cpp
+++ b/media/jni/audioeffect/Visualizer.cpp
@@ -49,7 +49,7 @@
 }
 
 status_t Visualizer::set(int32_t priority,
-                         effect_callback_t cbf,
+                         legacy_callback_t cbf,
                          void* user,
                          audio_session_t sessionId,
                          audio_io_handle_t io,