xenpaging: mkdir /var/lib/xen/xenpaging during make install

pagefiles go to /var/lib/xen/xenpaging directory,
create this directory during make install

Signed-off-by: Olaf Hering <olaf@aepfle.de>

tools/xenpaging/Makefile

@@ -27,6 +27,7 @@ xenpaging: $(OBJS)
 	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)
 
 install: all
+	$(INSTALL_DIR) $(DESTDIR)/var/lib/xen/xenpaging
 	$(INSTALL_DIR) $(DESTDIR)$(SBINDIR)
 	$(INSTALL_PROG) $(IBINS) $(DESTDIR)$(SBINDIR)