nodes from the DTB by default. This will allow us to enumerate the CPUs
without hard coding the CPU count into code.
Reviewed by: br
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D9827
platform code, it is expected these will be merged in the future when the
ARM code is more complete.
Until more boards can be tested only use this with the Raspberry Pi and
rrename the functions on the other SoCs.
Reviewed by: ian@