Currently, patch call field validations are done based on exclussion,
all the fields can be patched unless included in a list
`internal_attrs`.
This patch is adding a new validation rule based on fields inclussion
in a list `allowed_attrs`. When that list is non-empty, only the fields
included on it can be patched. in order to keep the existing behavior
for the existing patch calls, I am defining the list as empty, so that
the rest of validation rules are applied and it is not affecting the
current behavior.
Change-Id: I22010649332c8fb872446a9d0483a0303a4eba3b
Signed-off-by: Alfredo Moralejo <amoralej@redhat.com>
1a9f17748e