Change in coreboot[master]: drivers/storage: Get SD/MMC driver to build

[Lee Leahy (Code Review)]

Hello Andrey Petrov, Aaron Durbin, Bora Guvendik, build bot (Jenkins), Martin Roth,

I'd like you to reexamine a change.  Please visit

https://review.coreboot.org/19007

to look at the new patch set (#3).

Change subject: drivers/storage: Get SD/MMC driver to build
......................................................................

drivers/storage: Get SD/MMC driver to build

Add the Kconfig and Makefile and make necessary edits to get the code to
build.

TEST=Build for reef

Change-Id: I0cce2d3001ab1b3d7bbbb37f07001eef50af1924
Signed-off-by: Lee Leahy 
---
A src/drivers/storage/Kconfig
A src/drivers/storage/Makefile.inc
M src/drivers/storage/mmc.c
M src/drivers/storage/sdhci.c
A src/drivers/storage/storage.h
M src/include/device/mmc.h
M src/include/device/sdhci.h
7 files changed, 206 insertions(+), 147 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/07/19007/3