Define the main try console for all branches.

Change-Id: Ic34794a5840051626ca81514c9ccf7bcef74d17f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2538422
Auto-Submit: Garrett Beaty <gbeaty@chromium.org>
Reviewed-by: Erik Staab <estaab@chromium.org>
Commit-Queue: Erik Staab <estaab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827517}

infra/config/subprojects/chromium/try.star

@@ -86,6 +86,7 @@ luci.cq_group(
 
 try_.list_view(
     name = "try",
+    branch_selector = branches.ALL_BRANCHES,
     title = settings.main_list_view_title,
 )