Add System Tracing capability to Sync Manager

#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)