Effect UUID inputs passed by pointer are const

Change-Id: I1f5c338bcb7368e3dd8cd5f804b2e6d9fbe087f8
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 3cd094b..43b7245 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -5382,7 +5382,7 @@
     return EffectQueryEffect(index, descriptor);
 }
 
-status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid,
+status_t AudioFlinger::getEffectDescriptor(const effect_uuid_t *pUuid,
         effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);