Effect UUID inputs passed by pointer are const

Change-Id: I1f5c338bcb7368e3dd8cd5f804b2e6d9fbe087f8
diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index 5d70a9b..51c8b68 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -190,7 +190,7 @@
     return 0;
 }
 
-int VisualizerLib_Create(effect_uuid_t *uuid,
+int VisualizerLib_Create(const effect_uuid_t *uuid,
                          int32_t sessionId,
                          int32_t ioId,
                          effect_handle_t *pHandle) {
@@ -240,7 +240,7 @@
     return 0;
 }
 
-int VisualizerLib_GetDescriptor(effect_uuid_t       *uuid,
+int VisualizerLib_GetDescriptor(const effect_uuid_t *uuid,
                                 effect_descriptor_t *pDescriptor) {
 
     if (pDescriptor == NULL || uuid == NULL){