Android12 Framework修改遥控器调节音量Step歩进值

需求：

将媒体音量最大值调到了100，这个时候使用遥控器调节音量每次加1，使用起来就比较麻烦。因此，需要将遥控器调节音量的Step值从1修改到4。

以下是修改内容。

diff --git a/frameworks/base/services/core/java/com/android/server/audio/AudioService.java b/frameworks/base/services/core/java/com/android/server/audio/AudioService.java
index 4c63ab4c177..f1c9d086d4b 100755
--- a/frameworks/base/services/core/java/com/android/server/audio/AudioService.java
+++ b/frameworks/base/services/core/java/com/android/server/audio/AudioService.java
@@ -218,7 +218,7 @@ public class AudioService extends IAudioService.Stub
     protected static final boolean DEBUG_AP = false;
 
     /** Debug volumes */
-    protected static final boolean DEBUG_VOL = false;
+    protected static final boolean DEBUG_VOL = true;
 
     /** debug calls to devices APIs */
     protected static final boolean DEBUG_DEVICES = false;
@@ -2919,7 +2919,7 @&#