tst_device.h: Use lapi/syscalls.h instead of <sys/syscall.h>

As a fallback for old distros which does not define __NR_syncfs
(the dependency is in the library itself).

This was needed on SLES 11 (kernel 2.6.32).

Fixes: 74aeb88 ("tst_device: use raw syscall in the tst_device.h")

Acked-by: Jan Stancek <[email protected]>
Signed-off-by: Petr Vorel <[email protected]>

Author: pevik

include/tst_device.h

@@ -19,7 +19,7 @@
 #define TST_DEVICE_H__
 
 #include <unistd.h>
-#include <sys/syscall.h>
+#include "lapi/syscalls.h"
 
 struct tst_device {
 	const char *dev;