Pull up following revision(s) (requested by riastradh in ticket #1930):

external/bsd/iscsi/dist/src/lib/protocol.c: revision 1.5

libiscsi: Fix types of Time2Wait and Time2Retain in logout decap.

According to https://www.rfc-editor.org/rfc/rfc7143#section-11.15,
these are both 2-byte quantities.  Loading 4-byte quantities and
passing them through ISCSI_NTOHS might have worked by accident on
x86, but it's not gonna fly on big-endian.  (Fortunately sparc64 is
not just big-endian but also strict-alignment so it caught this
problem!)

XXX Is there an upstream for this code?  doc/3RDPARTY doesn't cite
any easily-followed references.

PR port-sparc64/57784

(martin)