blktrace: fix compilation error on the uos system

When compiling on uos, it fails with an undefined reference to 'major'. Fix
this by including the correct header for it.

liuyafei <liuyafei@uniontech.com>

Author: Cuelive

blktrace.c

@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <errno.h>
+#include <sys/sysmacros.h>
 
 #include "flist.h"
 #include "fio.h"