Simplify bringup order by removing a SYSINIT making it a static list
initialization.

Mfp4 @180384,180385:

There is no need for a dedicated SYSINIT here.  The
list can be initialized statically.

Sponsored by:		CK Software GmbH

Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: gnn
Differential Revision: https://reviews.freebsd.org/D4528