Add new US layout variant seems to be needed for some reason

Russian install test was failing because the existing needle
didn't match, not sure why.

needles/anaconda/install_process/layout_us-20170630.json

@@ -0,0 +1,16 @@
+{
+  "tags": [
+    "anaconda_layout_us",
+    "anaconda_layout_ascii"
+  ],
+  "properties": [],
+  "area": [
+    {
+      "type": "match",
+      "width": 35,
+      "ypos": 41,
+      "height": 15,
+      "xpos": 832
+    }
+  ]
+}