headers_check fix: linux/blktrace_api.h

fix the following 'make headers_check' warning:

  usr/include/linux/blktrace_api.h:96: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>

include/linux/blktrace_api.h

 #ifndef BLKTRACE_H
 #define BLKTRACE_H
 
+#include <linux/types.h>
 #ifdef __KERNEL__
 #include <linux/blkdev.h>
 #include <linux/relay.h>