Fixing plural

    rATType                     [10] RATType OPTIONAL,

    pDUSessionID                [11] PDUSessionID OPTIONAL,

    ePS5GSComboInfo             [12] EPS5GSComboInfo OPTIONAL,

    pCCRule                     [13] PCCRuleSet OPTIONAL

    pCCRules                    [13] PCCRuleSet OPTIONAL

}

-- See clause 6.2.3.2.4 for details of this structure