cpu/intel: Enter romstage without BIST

When entry to romstage is via cpu/intel/car/romstage.c
BIST has not been passed down the path for sometime.

Change-Id: I345975c53014902269cee21fc393331d33a84dce
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34908
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/mainboard/aopen/dxplplusu/romstage.c b/src/mainboard/aopen/dxplplusu/romstage.c
index 2929c0d..c95eeda 100644
--- a/src/mainboard/aopen/dxplplusu/romstage.c
+++ b/src/mainboard/aopen/dxplplusu/romstage.c
@@ -26,7 +26,7 @@
 	return smbus_read_byte(device, address);
 }
 
-void mainboard_romstage_entry(unsigned long bist)
+void mainboard_romstage_entry(void)
 {
 	static const struct mem_controller memctrl[] = {
 		{