ec/wilco: Provide SPI flash region to EC driver

Provide the starting address and size of the EC region in
SPI flash to the Wilco EC driver.

The EC driver will use this to find and hash the image in SPI.

BUG=b:120628933
BRANCH=none
TEST=build and boot on sarien

Change-Id: I2ef2b17f67acc3f4c907b8cb8af423d5c7b44b78
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1458480
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
3 files changed