Andrew Turner d4c893910d We will be switching to a new arm64 uart cpu driver that handles both FDT
and ACPI. As such pull out what will be the common parts of the FDT cpu
detection to a new function that can be shared between them.

Reviewed by:	manu
Obtained from:	ABT Systems Ltd
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7262
2016-07-20 17:19:47 +00:00
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