We mark SPAs with the "Control Region" type as user inaccessibleApply the same user accessible filter to namespaces as is applied
and don't createto full-SPA device nodes for them.es. Also, Apply the same logic toexplicitly filter out control region
also noSPAs which don't expose namespace devices of such SPAsthe nvdimm data area.
MFC after: 1 week
Sponsored by: Intel Corporation