Add missing dependency of tst_uuid.o on uuid.h

The missing dependency used to break parallel builds.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
---
diff -Nrup e2fsprogs.orig//lib/uuid/Makefile.in e2fsprogs-1.41.14//lib/uuid/Makefile.in
--- e2fsprogs.orig//lib/uuid/Makefile.in	2010-06-14 05:07:36.000000000 +0200
+++ e2fsprogs-1.41.14//lib/uuid/Makefile.in	2011-07-18 13:44:58.000000000 +0200
@@ -76,7 +76,7 @@ uuid.h: $(srcdir)/uuid.h.in
 $(top_builddir)/lib/uuid/uuid_types.h: $(srcdir)/uuid_types.h.in $(top_builddir)/config.status
 	cd $(top_builddir); CONFIG_FILES=$(my_dir)/uuid_types.h ./config.status
 
-tst_uuid.o: $(srcdir)/tst_uuid.c
+tst_uuid.o: $(srcdir)/tst_uuid.c uuid.h
 	$(E) "	CC $@"
 	$(Q) $(CC) $(ALL_CFLAGS) -c $(srcdir)/tst_uuid.c -o tst_uuid.o