Update root password needle for new icon and add other tag

The other tag the Help test uses is created by a concatenation
that isn't easy to change, so just add the tag to the other needle.

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

needles/anaconda/install_process/root_password-20210915.json

@@ -0,0 +1,17 @@
+{
+  "area": [
+    {
+      "type": "match",
+      "ypos": 485,
+      "width": 33,
+      "height": 32,
+      "xpos": 249
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "anaconda_install_root_password",
+    "anaconda_main_hub_root_password",
+    "ENV-DISTRI-fedora"
+  ]
+}

needles/anaconda/install_process/root_password-adwaita-20190211.json

@@ -11,6 +11,7 @@
   "properties": [],
   "tags": [
     "anaconda_install_root_password",
+    "anaconda_main_hub_root_password",
     "ENV-DISTRI-fedora"
   ]
-}
+}