docs/devel/qapi-code-gen: Belatedly update features documentation
Commit
013b4efc9be "qapi: Add feature flags to remaining
definitions" (v5.0.0), commit
84ab0086879 "qapi: Add feature flags to
struct members" (v5.0.0), and commit
b6c18755e41 "qapi: Add feature
flags to enum members" (v6.2.0) neglected to update section
"Features". Make up for that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
20230213132009.918801-2-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>