Support ITE IT8518 embedded controller running Quanta's firmware

Change-Id: Ib406b9d5005243d79eea5d2c0c6c86b5aa949891
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2721
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/src/ec/quanta/it8518/Makefile.inc b/src/ec/quanta/it8518/Makefile.inc
new file mode 100644
index 0000000..ccceb6f
--- /dev/null
+++ b/src/ec/quanta/it8518/Makefile.inc
@@ -0,0 +1,4 @@
+romstage-y += ec.c
+ramstage-y += ec.c
+smm-y += ec.c
+smm-y += ../../../lib/delay.c