Effect UUID inputs passed by pointer are const

Change-Id: I1f5c338bcb7368e3dd8cd5f804b2e6d9fbe087f8
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index 29b61df..f6cf5ae 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -582,7 +582,7 @@
         return NO_ERROR;
     }
 
-    virtual status_t getEffectDescriptor(effect_uuid_t *pUuid,
+    virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid,
             effect_descriptor_t *pDescriptor) const
     {
         if (pUuid == NULL || pDescriptor == NULL) {