ethercons updated for -CURRENT

[Poul-Henning Kamp]

One thing to consider in this context would be to have a list where drivers
could register a poll function, so that whenever we wait for input in the
debugger we continuously poll all functions on the list.  This gives us
the second best thing to interrupt handling.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.