Add android_n5x_swarming_rel back to the CQ.

infra/config/cq.cfg

Index: infra/config/cq.cfg
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 65d868fcbb7f4edc8f562a1e3ae942418ab1f348..0092521f36b69d211646a06fd44cc9ea887ff9b0 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -33,11 +33,7 @@ verifiers {
       builders { name: "android_clang_dbg_recipe" }
       builders { name: "android_compile_dbg" }
       builders { name: "android_cronet" }
-      builders {
-        # TODO(jbudorick): reenable ASAP; see crbug.com/672382
-        name: "android_n5x_swarming_rel"
-        experiment_percentage: 100
-      }
+      builders { name: "android_n5x_swarming_rel" }
       builders { name: "cast_shell_android" }
       builders { name: "linux_android_rel_ng" }
     }