Change in coreboot[master]: src: Remove unused <boot_device.h>

[HAOUAS Elyes (Code Review)]

Attention is currently required from: Patrick Rudolph.
Hello build bot (Jenkins), Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/50201

to look at the new patch set (#2).

Change subject: src: Remove unused <boot_device.h>
......................................................................

src: Remove unused <boot_device.h>

Change-Id: Idbb4d72e1ba620f71e8bf882d434c103cb422615
Signed-off-by: Elyes HAOUAS 
---
M src/drivers/spi/flashconsole.c
M src/drivers/spi/spi_flash.c
M src/soc/intel/common/block/cse/cse_lite.c
M src/soc/samsung/exynos5250/spi.c
4 files changed, 2 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/50201/2