Carl Hamilton a1ca00d157 ec: Minor cleanup of private host command macros. ...

* Rename PRIVATE_HOST_COMMAND_VALUE to EC_PRIVATE_HOST_COMMAND_VALUE to
  make it clear it is part of EC and reduce the likelihood of collisions.

* Move PRIVATE_HOST_COMMAND_VALUE macro to ec_commands.h. This reduces the
  transitive dependencies required to determine the value of a private host
  command. This is beneficial for code outside of the ChromiumOS build
  environment that needs to send private commands to an EC.

* Define DECLARE_PRIVATE_HOST_COMMAND when there is no host command task.
  This will prevent builds with private commands from failing when the host
  command task is not configured.

BUG=chromium:570895
BRANCH=none
TEST=make -j buildall

Change-Id: Iad938cb6a1521b65e4f893439d592ef375caace9
Reviewed-on: https://chromium-review.googlesource.com/426737
Commit-Ready: Carl Hamilton <carlh@chromium.org>
Tested-by: Carl Hamilton <carlh@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>

2017-01-11 14:46:18 -08:00

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