tools/nolibc: prefer the llseek syscall

Make sure to always use the 64-bit safe system call
in preparation for 64-bit off_t on 32 bit architectures.

Signed-off-by: Thomas Weißschuh <[e-mail]>
Acked-by: Willy Tarreau <[e-mail]>

tools/include/nolibc/sys.h

···
 static __attribute__((unused))
 off_t sys_lseek(int fd, off_t offset, int whence)
 {
-#if defined(__NR_lseek)
-	return my_syscall3(__NR_lseek, fd, offset, whence);
-#else
+#if defined(__NR_llseek)
 	__kernel_loff_t loff = 0;
 	off_t result;
 	int ret;
···
 		result = loff;
 
 	return result;
+#else
+	return my_syscall3(__NR_lseek, fd, offset, whence);
 #endif
 }