ec_chip_mchp: Add LPC and eSPI files.

Add Microchip MEC17xx family LPC and eSPI
support files. Fix fault when host sends
old style command packet.

BRANCH=none
BUG=
TEST=Review only.

Change-Id: I35c33be407e093b19c456b5a78c2c4e19a267b95
Signed-off-by: Scott Worley <scott.worley@microchip.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/840647
Commit-Ready: Randall Spangler <rspangler@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
3 files changed