K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2016-08-05T17:16:35.110702Z
K 7
svn:log
V 415
[arge] add some extra MDIO debugging support

* add an ANY debug level which will always echo the message if debugging
  is compiled in;
* log MDIO transaction timeouts if debugging is compiled in;
* the argemdio device is different to arge, so turning on MDIO debugging
  flags in arge->sc_debug doesn't help.  Add a debug sysctl to argemdio
  as well so that MDIO transactions can be debugged.

Tested:

* AR9331

END