Patch merged into coreboot/master: drivers/spi: include SPI flash modules for all stages

the following patch was just integrated into master:
commit 5180dd2c4b6fa7756c43485a8a0f2ca5015cc774
Author: Aaron Durbin 
Date:   Thu Aug 11 17:04:42 2016 -0500

drivers/spi: include SPI flash modules for all stages

It shouldn't matter if COMMON_CBFS_SPI_WRAPPER is selected to
    include the SPI flash support in all stages. Therefore, include
    the SPI flash support files in all the stages. While there include
    the same set of files for all stages. They were out of sync for
    some reason.

BUG=chrome-os-partner:56151

Change-Id: I933335104203315cbbcf965185a7c176974e6356
    Signed-off-by: Aaron Durbin 
    Reviewed-on: https://review.coreboot.org/16198
    Tested-by: build bot (Jenkins)
    Reviewed-by: Furquan Shaikh 
    Reviewed-by: Paul Menzel 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/16198 for details.

-gerrit