Include what you use: <stdio.h> and <unistd.h> am: 24b31dced5

Change-Id: Id5cebf4c2e8e268d8b64c30c02cc5265190677ca

libpsi/psi.cpp

@@ -18,8 +18,10 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <stdio.h>
 #include <string.h>
 #include <sys/epoll.h>
+#include <unistd.h>
 
 #include <log/log.h>
 #include "psi/psi.h"

statslog.cpp

@@ -26,6 +26,7 @@
 #include <string.h>
 #include <sys/uio.h>
 #include <time.h>
+#include <unistd.h>
 
 #ifdef LMKD_LOG_STATS