tools: ynl: decode enums in auto-ints

Use enum decoding on auto-ints. Looks like we only had enum
auto-ints for input values until now. Upcoming RSS work will
need this to declare an attribute with flags as a uint.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250708220640.2738464-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kuba-moo

tools/net/ynl/pyynl/lib/ynl.py

@@ -762,6 +762,8 @@ def _decode(self, attrs, space, outer_attrs = None):
                     decoded = True
                 elif attr_spec.is_auto_scalar:
                     decoded = attr.as_auto_scalar(attr_spec['type'], attr_spec.byte_order)
+                    if 'enum' in attr_spec:
+                        decoded = self._decode_enum(decoded, attr_spec)
                 elif attr_spec["type"] in NlAttr.type_formats:
                     decoded = attr.as_scalar(attr_spec['type'], attr_spec.byte_order)
                     if 'enum' in attr_spec: