Fix tpc_create_token() introduced in r269497 to encode CREATOR LOGICAL UNIT
DESCRIPTOR field as Identification Descriptor CSCD descriptor, not just as
Identification Descriptor.

MFC after:	3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@271702 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f