i#5734: disable rseq test on AArch64 runners

The rseq test fails on various different machines, and in
different contexts including during postcommit on the
test runner, but not on precommit. Ignoring this by
default due to the flakiness

issue: #5734
Change-Id: Ifada989df7e27a5bf638062c3cc7f1360badc5df

suite/runsuite_wrapper.pl

@@ -329,7 +329,8 @@
                                    'code_api|tool.drcachesim.delay-simple' => 1, # i#2892
                                    'code_api|tool.drcachesim.invariants' => 1, # i#2892
                                    'code_api|tool.drcacheoff.simple' => 1,
-                                   'code_api|tool.histogram.gzip' => 1);
+                                   'code_api|tool.histogram.gzip' => 1,
+                                   );
             # FIXME i#2417: fix flaky/regressed AArch64 tests
             %ignore_failures_64 = ('code_api|linux.sigsuspend' => 1,
                                    'code_api|pthreads.pthreads_exit' => 1,
@@ -341,6 +342,7 @@
                                    'code_api|client.attach_test' => 1, # i#5740
                                    'code_api|client.attach_blocking' => 1, # i#5740
                                    'code_api|tool.drcacheoff.invariant_checker' => 1, # i#5724
+                                   'code_api|tool.drcacheoff.rseq' => 1 # i#5734
                                    );
             if ($is_32) {
                 $issue_no = "#2416";