libxl: ship libxl_uuid.h, to unbreak out-of-tree libxl builds

Broken since introduction of libxl_uuid.h which defines a core API
data-type but it's not installed in include directory.

Signed-off-by: Gianni Tedesco <gianni.tedesco@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

tools/libxl/Makefile

@@ -115,7 +115,7 @@ install: all
 	ln -sf libxlutil.so.$(XLUMAJOR).$(XLUMINOR) $(DESTDIR)$(LIBDIR)/libxlutil.so.$(XLUMAJOR)
 	ln -sf libxlutil.so.$(XLUMAJOR) $(DESTDIR)$(LIBDIR)/libxlutil.so
 	$(INSTALL_DATA) libxlutil.a $(DESTDIR)$(LIBDIR)
-	$(INSTALL_DATA) libxl.h _libxl_types.h $(DESTDIR)$(INCLUDEDIR)
+	$(INSTALL_DATA) libxl.h _libxl_types.h libxl_uuid.h $(DESTDIR)$(INCLUDEDIR)
 	$(INSTALL_DATA) bash-completion $(DESTDIR)$(BASH_COMPLETION_DIR)/xl.sh
 
 .PHONY: clean