tools: Adopt asm-generic/barrier.h

From the kernel's include/asm-generic/barrier.h, will be used by the
sh barrier.h implementation.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-emjznw0rjsmfyx2wfixss1gv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 00754af..ac62caf 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -11,6 +11,7 @@
 tools/lib/util/find_next_bit.c
 tools/include/asm/barrier.h
 tools/include/asm/bug.h
+tools/include/asm-generic/barrier.h
 tools/include/asm-generic/bitops/arch_hweight.h
 tools/include/asm-generic/bitops/atomic.h
 tools/include/asm-generic/bitops/const_hweight.h