purge internal byteorder usage

Switch to the standard UAPI headers for cpu byteswapping helpers.

BUG=chromium:878440
TEST=build works

Change-Id: I347bd740df27a26fb388a4c017df84a4c9d9d845
Reviewed-on: https://chromium-review.googlesource.com/1194714
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
6 files changed