[coreboot-gerrit] Patch merged into coreboot/master: drivers/spi: remove unconditional RW boot device initialization

the following patch was just integrated into master:
commit 67e4df8b65c0b48717e3550089e7d230aeb6fe52
Author: Aaron Durbin 
Date:   Tue Aug 23 08:45:55 2016 -0500

drivers/spi: remove unconditional RW boot device initialization

The SPI drivers for the various chipsets are not consistent in
    their handling of when they are accessible. Coupled with the
    unknown ordering of boot_device_init() being called this can
    lead to unexpected behavior (probing failures or hangs). Instead
    move the act of initializing the SPI flash boot device to when
    the various infrastructure requires its usage when it calls
    boot_device_rw(). Those platforms utilizing the RW boot device
    would need to ensure their SPI drivers are functional and
    ready when the call happens.

This further removes any other systems failing to boot as
    reported in https://ticket.coreboot.org/issues/67.

BUG=chrome-os-partner:56151

Change-Id: Ib3bddf5e26bf5322f3dd20345eeef6bee40f0f66
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/16300
    Tested-by: build bot (Jenkins)
    Tested-by: Raptor Engineering Automated Test Stand 
    Reviewed-by: Paul Menzel 
    Reviewed-by: Martin Roth 
    Reviewed-by: Werner Zeh

See https://review.coreboot.org/16300 for details.

-gerrit