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>

src/commonlib/Makefile.inc

@@ -0,0 +1,10 @@
+bootblock-y += mem_pool.c
+verstage-y += mem_pool.c
+romstage-y += mem_pool.c
+ramstage-y += mem_pool.c
+
+bootblock-y += region.c
+verstage-y += region.c
+romstage-y += region.c
+ramstage-y += region.c
+smm-y += region.c