Patch merged into coreboot/master: drivers/intel/fsp2_0: Include stddef.h in soc_binding.h

the following patch was just integrated into master:
commit 861a4b88faa85d49758cb9a782bbd16c8d429c08
Author: Furquan Shaikh 
Date:   Wed Dec 7 20:34:32 2016 -0800

drivers/intel/fsp2_0: Include stddef.h in soc_binding.h

soc_binding.h includes FSP headers which define NULL macro. Because of
    this, including stddef.h after soc_binding.h results in NULL being
    re-defined. Thus, include stddef.h in soc_binding.h to avoid having
    users include stddef.h along with soc_binding.h.

Change-Id: I600083c5d8f672518beaa1119f14f67728a433aa
    Signed-off-by: Furquan Shaikh 
    Reviewed-on: https://review.coreboot.org/17773
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/17773 for details.

-gerrit