Audio effects: modified command() parameter types.

The type of the cmd, cmdSize and *pReplySize parameters of the effect control interface command()
function have been modified from int to uint32_t. This is more consistent with their role.

Change-Id: I84d289fc262d6753747910f06f485597dfee6591
diff --git a/media/libeffects/testlibs/EffectEqualizer.cpp b/media/libeffects/testlibs/EffectEqualizer.cpp
index 0eb2bdf..a71f236 100644
--- a/media/libeffects/testlibs/EffectEqualizer.cpp
+++ b/media/libeffects/testlibs/EffectEqualizer.cpp
@@ -551,8 +551,8 @@
     return 0;
 }   // end Equalizer_process
 
-extern "C" int Equalizer_command(effect_interface_t self, int cmdCode, int cmdSize,
-        void *pCmdData, int *replySize, void *pReplyData) {
+extern "C" int Equalizer_command(effect_interface_t self, uint32_t cmdCode, uint32_t cmdSize,
+        void *pCmdData, uint32_t *replySize, void *pReplyData) {
 
     android::EqualizerContext * pContext = (android::EqualizerContext *) self;
     int retsize;