MFC r279385, r279902, r281412:

Merge latest dts files (commit c8c1b3a77934768c7f7a4a9c10140c8bec529059)
from the git tree.

File names with commas in them cause issues for freebsd-update. We
don't actually use these files at the moment, so eliminate them until
we actually do. In the mean time, freebsd-update will be updated
to eliminate the issues.

The GNU Amlogic DTS files have some errors (e.g. bad register
address, bad IRQ, etc) which are fixed by this patch.

MFC r262606, r262607, r262608, r262609, r262610, r269528, r269609, r271133:

- Move imported dts source from sys/contrib/dts/ to sys/gnu/dts.
- Fix some missing properties.
- Import dts-related header files.
- Update everything to latest vendor branch representing 3.17-rc2
level of Linux DTS API.

Symbolic bindings for the dts files...

Move to dist, per layout standards

Bring in Ian Campbell's pruned dts repo.
From git://xenbits.xen.org/people/ianc/device-tree-rebasing.git
commit efa963ec806366c9628dfd1269316bb93b7ecb15
Merge: a72ba09 459c249
Author: Ian Campbell <ian.campbell@citrix.com>
Date: Wed Feb 26 08:39:16 2014 +0000

Merge tag 'v3.14-rc4-dts'

Linux 3.14-rc4