EC: LPC: Increase command timeout to 5000ms

This is the same command timeout used in the upper layer for proto3
and allows enough time for flash erase to complete.

BUG=chrome-os-partner:25268
BRANCH=baytrail
TEST=build and boot on rambi

Change-Id: I87a50911bd575a7c3bac361f12868a555f89a2c8
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/184452
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed