SAML2: IDPSSODescriptor: Fix AssertionIDRequestService parsing.
SAML2: IDPSSODescriptor: Fix AssertionIDRequestService parsing.

Thanks to Marco Ferrante for reporting this bug!

rchavik/simplesamlphp,rchavik/simplesamlphp,rchavik/simplesamlphp,rchavik/simplesamlphp