Many instances filter are restricted to admin-only users, while the
related attribute are readable when showing instance detail for non
admin users.
In order to stay coherent, all existing instance filters who are
related to a field readable by default to non admin users when showing
instance details, should be allowed by default without policy
modification.
APIImpact
Change-Id: I288e4a2bd12702a1e7f7ebed544c95eb4a40e641
Implements: blueprint non-admin-filter-instance-by-az
c76d1b3149