K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-11-01T07:10:43.873543Z
K 7
svn:log
V 269
hyperv/hn: Regroup if_start related functions.

And put them under HN_IFSTART_SUPPORT, which is by default on until
we whack the if_start related bits from base system.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8392

END