Add new trace tag for AIDL.

So we can auto-generate tracing code for AIDL interfaces.

Bug: 74416314
Test: inspect atrace output
Change-Id: I42eee24358763305d6b4e954087f3331ad20f9b7
Merged-In: I42eee24358763305d6b4e954087f3331ad20f9b7

core/java/android/os/Trace.java

@@ -89,6 +89,8 @@ public final class Trace {
     public static final long TRACE_TAG_NETWORK = 1L << 21;
     /** @hide */
     public static final long TRACE_TAG_ADB = 1L << 22;
+    /** @hide */
+    public static final long TRACE_TAG_AIDL = 1L << 24;
 
     private static final long TRACE_TAG_NOT_READY = 1L << 63;
     private static final int MAX_SECTION_NAME_LEN = 127;