Build desktopencrypt for Branched too

We need this for upgrade tests now I fixed the upgrade test
scheduling so Rawhide upgrade tests run from Rawhide-1 and
Rawhide-2, not currrel and prevrel...

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

hdds.json

@@ -159,7 +159,8 @@
         {
             "name" : "desktopencrypt",
             "releases" : {
-                "stable" : ["x86_64"]
+                "stable" : ["x86_64"],
+                "branched" : ["x86_64"]
             },
             "size" : "20",
             "variant": "Workstation"