[Autofill] Enable 'Disallow Elo/JCB' features for waterfall testing config

Bug: 868552
Change-Id: I6a796cdcc0d4aa27750caa8a93581f205d4e8409
Reviewed-on: https://chromium-review.googlesource.com/1161569Reviewed-by: Robert Kaplow (slow) <rkaplow@chromium.org>
Commit-Queue: Jared Saul <jsaul@google.com>
Cr-Commit-Position: refs/heads/master@{#581011}

testing/variations/fieldtrial_testing_config.json

@@ -555,6 +555,27 @@
             ]
         }
     ],
+    "AutofillUpstreamDisallowEloAndJcb": [
+        {
+            "platforms": [
+                "android",
+                "chromeos",
+                "ios",
+                "linux",
+                "mac",
+                "windows"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled",
+                    "enable_features": [
+                        "AutofillUpstreamDisallowElo",
+                        "AutofillUpstreamDisallowJcb"
+                    ]
+                }
+            ]
+        }
+    ],
     "AutofillUpstreamUpdatePromptExplanation": [
         {
             "platforms": [