mb/siemens/chili: Add Chili variant

This Chili mainboard is used in an all-in-one PC.

For more information see
https://www.secunet.com/fileadmin/user_upload/_temp_/importexport/Print/Factsheets/englisch/SINA_Workstation_H_Client_V_Factsheet_EN_Web.pdf

Change-Id: Ic7a5dccbb0d5b7bceb154fb050cf991254475f7b
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39995
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Thomas Heijligen <src@posteo.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/siemens/chili/romstage.c b/src/mainboard/siemens/chili/romstage.c
index 9c941c2..c1ec7e4 100644
--- a/src/mainboard/siemens/chili/romstage.c
+++ b/src/mainboard/siemens/chili/romstage.c
@@ -38,5 +38,11 @@
 	memupd->FspmTestConfig.VtdDisable = !vtd;
 	get_option(&memupd->FspmConfig.HyperThreading, "hyper_threading");
 
+	variant_romstage_params(memupd);
+
 	mainboard_init();
 }
+
+__weak void variant_romstage_params(FSPM_UPD *const mupd)
+{
+}