Add new cockpit login needle

The login screen background changed in 205.1 (it's actually the
same image, but it's now zoomed rather than just a chunk of it
being shown on a smaller screen).

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/cockpit/login-cockpit2051-20191018.json

@@ -0,0 +1,15 @@
+{
+  "area": [
+    {
+      "xpos": 711,
+      "ypos": 194,
+      "type": "match",
+      "height": 77,
+      "width": 227
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "cockpit_login"
+  ]
+}