Effect UUID inputs passed by pointer are const

Change-Id: I1f5c338bcb7368e3dd8cd5f804b2e6d9fbe087f8
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index ba94bad..361cee6 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -146,7 +146,7 @@
 
     virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const = 0;
 
-    virtual status_t getEffectDescriptor(effect_uuid_t *pEffectUUID,
+    virtual status_t getEffectDescriptor(const effect_uuid_t *pEffectUUID,
                                         effect_descriptor_t *pDescriptor) const = 0;
 
     virtual sp<IEffect> createEffect(pid_t pid,