Change in coreboot[master]: src/southbridge: Remove unused <string.h>

[HAOUAS Elyes (Code Review)]

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

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

https://review.coreboot.org/c/coreboot/+/60554

to look at the new patch set (#4).

Change subject: src/southbridge: Remove unused <string.h>
......................................................................

src/southbridge: Remove unused <string.h>

Change-Id: Idc0cd9d6865cd9c1b95e6c838795cce9dbc643a3
Signed-off-by: Elyes HAOUAS 
---
M src/southbridge/intel/bd82x6x/early_me.c
M src/southbridge/intel/bd82x6x/early_me_mrc.c
M src/southbridge/intel/bd82x6x/me.c
M src/southbridge/intel/bd82x6x/me_smm.c
M src/southbridge/intel/common/acpi_pirq_gen.c
M src/southbridge/intel/lynxpoint/early_me.c
6 files changed, 2 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/54/60554/4