K 10
svn:author
V 6
andrew
K 8
svn:date
V 27
2020-08-03T16:43:40.594026Z
K 7
svn:log
V 307
Allow the Raspberry Pi firmware driver to be a bus

There are child nodes in the device tree, e.g. the Raspberry Pi firmware
GPIO device. Add support for this to be a bus so we can attach these
children.

Reviewed by:	manu
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D25848

END