Rename XA audio function

examples/PoolBox/application/include/asset_mgr.hpp

@@ -30,6 +30,6 @@ namespace Assets {
     }
 
     namespace XAAudio {
-        void play_fox();
+        void play_mix();
     }
 }

examples/PoolBox/application/src/application.cpp

@@ -25,7 +25,7 @@ struct CDPlayer {
 
     void play() {
         if(this->is_xa) {
-            Assets::XAAudio::play_fox();
+            Assets::XAAudio::play_mix();
         }
 
         else {

examples/PoolBox/application/src/asset_mgr.cpp

@@ -122,7 +122,7 @@ namespace Assets {
     }
 
     namespace XAAudio {
-        void play_fox() {
+        void play_mix() {
             CDXA::play(lba, MIX_XA, 0, false);
         }
     }