Add System Tracing capability to Sync Manager

See also: Change-Id: Ia8bc01adbba345a568405b0ac8ade96e56b40cc1

Change-Id: I2678974cf85464fbc09072b06f647a0787e6e23f
diff --git a/include/utils/Trace.h b/include/utils/Trace.h
index 6e2e284..032af1b 100644
--- a/include/utils/Trace.h
+++ b/include/utils/Trace.h
@@ -48,7 +48,8 @@
 #define ATRACE_TAG_WEBVIEW          (1<<4)
 #define ATRACE_TAG_WINDOW_MANAGER   (1<<5)
 #define ATRACE_TAG_ACTIVITY_MANAGER (1<<6)
-#define ATRACE_TAG_LAST             ATRACE_TAG_ACTIVITY_MANAGER
+#define ATRACE_TAG_SYNC_MANAGER     (1<<7)
+#define ATRACE_TAG_LAST             ATRACE_TAG_SYNC_MANAGER
 
 #define ATRACE_TAG_VALID_MASK ((ATRACE_TAG_LAST - 1) | ATRACE_TAG_LAST)