Patch merged into coreboot/master: drivers/i2c/generic: Add config for marking device as probed

the following patch was just integrated into master:
commit fbf2c79b489a526e5ab7359ce56be0b4b66c854b
Author: Duncan Laurie 
Date:   Mon Sep 26 10:31:22 2016 -0700

drivers/i2c/generic: Add config for marking device as probed

Add a config option to the generic I2C device driver to indicate to
    the OS that this device should be probed before being added.

This can be used to provide ACPI device instantiations to devices that
    may not actually exist on the board.  For example, if multiple trackpad
    vendors are supported on the same board they can both be described in
    ACPI and the OS will probe the address and load the driver only if the
    device responds to the probe at that address.

BUG=chrome-os-partner:57686

Change-Id: I22cffb4b15f25d97dfd37dc58bca315f57bafc59
    Signed-off-by: Duncan Laurie 
    Reviewed-on: https://review.coreboot.org/16742
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/16742 for details.

-gerrit