mb/google/drallion: Add two variants - arcada_cml & sarien_cml

These variants are to support the sarien and arcada boards
with CML SOC, the drallion variant will be used to support the
upcoming drallion board.

Signed-off-by: Thejaswani Putta <thejaswani.putta@intel.com>
Change-Id: I766bdccb6f8b6924d6ae1abbe57035f4ff1f6f17
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34887
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mathew King <mathewk@chromium.org>
diff --git a/src/mainboard/google/drallion/variants/arcada_cml/Makefile.inc b/src/mainboard/google/drallion/variants/arcada_cml/Makefile.inc
new file mode 100644
index 0000000..2bf028e
--- /dev/null
+++ b/src/mainboard/google/drallion/variants/arcada_cml/Makefile.inc
@@ -0,0 +1,19 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright 2018 Google LLC
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; version 2 of the License.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+
+bootblock-y += gpio.c
+ramstage-y += gpio.c
+romstage-y += gpio.c
+verstage-y += gpio.c