coreboot: introduce commonlib

Instead of reaching into src/include and re-writing code
allow for cleaner code sharing within coreboot and its
utilities. The additional thing needed at this point is
for the utilities to provide a printk() declaration within
a <console/console.h> file. That way code which uses printk()
can than be mapped properly to verbosity of utility parameters.

Change-Id: I9e46a279569733336bc0a018aed96bc924c07cdd
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11592
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
diff --git a/Makefile.inc b/Makefile.inc
index 46d6eb2..81c149d 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -54,7 +54,7 @@
 
 #######################################################################
 # root source directories of coreboot
-subdirs-y := src/lib src/console src/device src/acpi
+subdirs-y := src/lib src/commonlib/ src/console src/device src/acpi
 subdirs-y += src/ec/acpi $(wildcard src/ec/*/*) $(wildcard src/southbridge/*/*)
 subdirs-y += $(wildcard src/soc/*/*) $(wildcard src/northbridge/*/*)
 subdirs-y += src/superio $(wildcard src/drivers/*) src/cpu src/vendorcode
@@ -267,7 +267,7 @@
 export COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
 endif
 
-CPPFLAGS_common := -Isrc -Isrc/include -I$(obj)
+CPPFLAGS_common := -Isrc -Isrc/include -Isrc/commonlib/include -I$(obj)
 CPPFLAGS_common += -Isrc/device/oprom/include
 CPPFLAGS_common += -include $(src)/include/kconfig.h