Make native metrics logger write to statsd socket

Bug: 110537511
Test: compiles without failures and verified the correct metric
Change-Id: Ie8019a20a2112ed6cbbc0999d68592efb8f0f538
diff --git a/libstats/statsd_writer.c b/libstats/statsd_writer.c
index afe401f..e24dff0 100644
--- a/libstats/statsd_writer.c
+++ b/libstats/statsd_writer.c
@@ -15,7 +15,9 @@
  */
 #include "statsd_writer.h"
 
+#include <cutils/fs.h>
 #include <cutils/sockets.h>
+#include <cutils/threads.h>
 #include <endian.h>
 #include <errno.h>
 #include <fcntl.h>