osdict: Hardcode win11 requires UEFI

Since there's a release pending, this is a bit of future proofing
if win11 pops up in a future osinfo-db without accompanying
libosinfo firmware APIs landing

Signed-off-by: Cole Robinson <crobinso@redhat.com>

virtinst/osdict.py

@@ -464,6 +464,13 @@ class _OsVariant(object):
         except Exception:  # pragma: no cover
             log.debug("Error checking osinfo firmware support", exc_info=True)
 
+        if self.name == "win11":  # pragma: no cover
+            # 2022-03 the libosinfo APIs for firmware haven't landed, and
+            # there's no osinfo-db entry for win11. But we know win11 requires
+            # UEFI. Hardcode it for now, so the next virt-install release has
+            # a better chance of doing the right thing for win11 when
+            # it pops up in a osinfo-db release.
+            ret = True
         return ret
 
     def get_recommended_resources(self):