Patch merged into coreboot/master: google/pyro: set i2c bus timings by rise/fall times

the following patch was just integrated into master:
commit 35d7d586cd7a2a350d813697813ff8496edc1353
Author: Kevin Chiu 
Date:   Wed Nov 30 16:30:28 2016 +0800

google/pyro: set i2c bus timings by rise/fall times

Provide the rise and fall times for the i2c buses and let the
    library perform the necessary calculations for the i2c
    controller registers instead of manually tuning the values.

BUG=chrome-os-partner:58112
    BRANCH=master
    TEST=emerge-pyro coreboot
    Change-Id: I68be9b96dc731eb0084ee5e15921866818637e73
    Signed-off-by: Kevin Chiu 
    Reviewed-on: https://review.coreboot.org/17652
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/17652 for details.

-gerrit