add more mosys platform information to chrome://system

To be able to debug various hardware related issues on Spring, we need
to know precisely the board revision inside the machine.
"mosys platform version" is returning a decoded form of the board revision
id and various other "mosys platform" subcommands give hw specific info.
Let's add these to chrome://system and feedback reports.

BUG=chrome-os-partner:21674
TEST=on Spring, open chrome://system and see the board revision properly
reported under "platform_info", fill a feedback and also see it in the
feedback "Product Specific Data"

Change-Id: I41d844cf4293d0a6f373662983b36ee279f30879
Reviewed-on: https://gerrit.chromium.org/gerrit/64707
Reviewed-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
3 files changed
tree: cad9f0e4723290553aa7354bbb469611b818c875
  1. LICENSE
  2. etc/
  3. inherit-review-settings-ok
  4. init/
  5. scripts/