add deregistration test WINFF.FT.S.DER.7
add deregistration test WINFF.FT.S.DER.7

krlinus/Spectrum-Access-System,krlinus/Spectrum-Access-System,Wireless-Innovation-Forum/Spectrum-Access-System,Wireless-Innovation-Forum/Spectrum-Access-System,Wireless-Innovation-Forum/Spectrum-Access-System,krlinus/Spectrum-Access-System,Wireless-Innovation-Forum/Spectrum-Access-System,krlinus/Spectrum-Access-System