[autotest] Hide firmware labels from AFE

fwrw-version and fwro-version are the version label just like cros-version,
they don't need to be listed in Host List tab's label listbox.

BUG=None
TEST=local afe

Change-Id: Icb98d432df11bb1baced12a1763c3efd2aa2b0c0
Reviewed-on: https://chromium-review.googlesource.com/290351
Trybot-Ready: Dan Shi <dshi@chromium.org>
Tested-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Dan Shi <dshi@chromium.org>
diff --git a/frontend/afe/rpc_interface.py b/frontend/afe/rpc_interface.py
index c10f3b2..3959c71 100644
--- a/frontend/afe/rpc_interface.py
+++ b/frontend/afe/rpc_interface.py
@@ -1516,7 +1516,9 @@
     result['users'] = get_users(sort_by=['login'])
 
     label_exclude_filters = [{'name__startswith': 'cros-version'},
-                             {'name__startswith': 'fw-version'}]
+                             {'name__startswith': 'fw-version'},
+                             {'name__startswith': 'fwrw-version'},
+                             {'name__startswith': 'fwro-version'}]
     result['labels'] = get_labels(
         label_exclude_filters,
         sort_by=['-platform', 'name'])