K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2020-03-02T20:14:27.483229Z
K 7
svn:log
V 395
Add deprecation notices to ctau and cx drivers

These support outdated or obsolete ISA WAN (T1/E1) sync serial cards,
and these drivers haven't really been touched (other than in tree-wide
sweeps to keep them building) for 15+ years.

Related PCI devices ce and cp are still in the tree, with deprecation
proposed in D23928.

MFC after:	1 week
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation

END