Adb: use VLOG() to replace D() for verbose logging.

As there are too many D(), we can keep both VLOG() and D() now, and get
rid of D() gradually.

Change-Id: I2f1cb70bcab3e82c99fed939341d03f6b2216076
diff --git a/adb/fdevent.cpp b/adb/fdevent.cpp
index 666a15f..2de9386 100644
--- a/adb/fdevent.cpp
+++ b/adb/fdevent.cpp
@@ -15,7 +15,7 @@
 ** limitations under the License.
 */
 
-#define TRACE_TAG TRACE_FDEVENT
+#define TRACE_TAG FDEVENT
 
 #include "sysdeps.h"
 #include "fdevent.h"