helgrind/tests/Makefile.am: Add tc22_exit_w_lock.stderr.exp-kfail-x86 to EXTRA_DIST. See also r12079.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12151 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/helgrind/tests/Makefile.am b/helgrind/tests/Makefile.am
index 5412a74..254ab51 100644
--- a/helgrind/tests/Makefile.am
+++ b/helgrind/tests/Makefile.am
@@ -80,6 +80,7 @@
 	tc21_pthonce.vgtest tc21_pthonce.stdout.exp tc21_pthonce.stderr.exp \
 	tc22_exit_w_lock.vgtest tc22_exit_w_lock.stdout.exp \
 		tc22_exit_w_lock.stderr.exp \
+		tc22_exit_w_lock.stderr.exp-kfail-x86 \
 	tc23_bogus_condwait.vgtest tc23_bogus_condwait.stdout.exp \
 		tc23_bogus_condwait.stderr.exp \
 	tc24_nonzero_sem.vgtest tc24_nonzero_sem.stdout.exp \