Patch merged into coreboot/master: soc/*/Makefile.inc: Do not add soc/common as a subdir

the following patch was just integrated into master:
commit 3cd280589c7c9c32b356a2ded7cc0975e1a93037
Author: Alexandru Gagniuc 
Date:   Fri Aug 28 13:24:52 2015 -0400

soc/*/Makefile.inc: Do not add soc/common as a subdir

Aaron Durbin found that soc/common is already included as a subdir via
    the wildcard in Makefile.inc:
      subdirs-y += $(wildcard src/soc/*/*)
    Since the entire file is protected by CONFIG_SOC_INTEL_COMMON, there
    is no problem with including it for every platform. On the other hand,
    when it is included by the skylake and braswell makefiles, any rule is
    duplicated. As a result fix the braswell and skylake makefiles.

Change-Id: If5bad903c78dbce418852935ee55cdc7162b3b2d
    Signed-off-by: Alexandru Gagniuc 
    Reviewed-on: http://review.coreboot.org/11439
    Reviewed-by: Aaron Durbin 
    Tested-by: build bot (Jenkins)

See http://review.coreboot.org/11439 for details.

-gerrit