libc: Add membarrier to common seccomp allowed list

Allows ART JIT use membarrier to invalidate instruction
pipelines.

Bug: 66095511
Test: bionic-unit-tests
Change-Id: I8cf83929f00baf5a3c440a899d2667a992bda8e2
diff --git a/tests/Android.bp b/tests/Android.bp
index fa66f93..ffa6b2a 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -104,6 +104,7 @@
         "malloc_test.cpp",
         "math_test.cpp",
         "math_force_long_double_test.cpp",
+        "membarrier_test.cpp",
         "mntent_test.cpp",
         "netdb_test.cpp",
         "net_if_test.cpp",