Update _3gpp-common-trace.yang

  prefix "trace3gpp";

  import _3gpp-common-top { prefix top3gpp; }

  import _3gpp-common-yang-types {prefix types3gpp; }

  import _3gpp-common-yang-extensions {prefix yext3gpp; }

  import ietf-inet-types { prefix inet; }

  import _3gpp-common-files { prefix files3gpp; }

  import _3gpp-5g-common-yang-types { prefix 5gtypes3gpp; }

  import _3gpp-5g-common-yang-types { prefix types5g3gpp; }

  organization "3GPP SA5";

    list sliceIdList {

      key idx;

      description "It specifies the PNI-NPN identified by CAG ID ";

      leaf idx { type 5gtypes3gpp:SNssai; }

      leaf idx { type types5g3gpp:SNssai; }

    }

  }