Add TRACKS_ALL, remove BGCntrlBitfield

src/battle_controller_recorded_opponent.c

@@ -301,7 +301,7 @@ static void Intro_TryShinyAnimShowHealthbox(void)
             }
             else
             {
-                m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 0x100);
+                m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
             }
         }
         gBattleSpritesDataPtr->healthBoxesData[gActiveBattler].bgmRestored = TRUE;
@@ -450,7 +450,7 @@ static void SwitchIn_HandleSoundAndEnd(void)
         if (gSprites[gBattlerSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy
             || gSprites[gBattlerSpriteIds[gActiveBattler]].callback == SpriteCallbackDummy_2)
         {
-            m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 0x100);
+            m4aMPlayVolumeControl(&gMPlayInfo_BGM, TRACKS_ALL, 0x100);
             RecordedOpponentBufferExecCompleted();
         }
     }