perf tools: Switch module.h into export.h

When merged to Linus's latest tree the perf build is broken
due to following change in lib/rbtree.c object:

  lib: reduce the use of module.h wherever possible
  commit 8bc3bcc93a2b4e47d5d410146f6546bca6171663
  Author: Paul Gortmaker <paul.gortmaker@windriver.com>
  Date:   Wed Nov 16 21:29:17 2011 -0500

We need to move module.h header into export.h.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: acme@redhat.com
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
Cc: cjashfor@linux.vnet.ibm.com
Cc: fweisbec@gmail.com
Link: http://lkml.kernel.org/r/1332753425-3299-1-git-send-email-jolsa@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index b492e3a..2f42886 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -251,7 +251,7 @@
 LIB_H += util/include/linux/ctype.h
 LIB_H += util/include/linux/kernel.h
 LIB_H += util/include/linux/list.h
-LIB_H += util/include/linux/module.h
+LIB_H += util/include/linux/export.h
 LIB_H += util/include/linux/poison.h
 LIB_H += util/include/linux/prefetch.h
 LIB_H += util/include/linux/rbtree.h
diff --git a/tools/perf/util/include/linux/module.h b/tools/perf/util/include/linux/export.h
similarity index 100%
rename from tools/perf/util/include/linux/module.h
rename to tools/perf/util/include/linux/export.h