soc/intel/fsp_broadwell_de: Fix uart

* Disable FSP serial output if not CONSOLE_SERIAL

Tested on wedge100s.

Change-Id: Idd825d2d6eb423452d3e81265860205980f6aa5b
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/30706
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/soc/intel/fsp_broadwell_de/fsp/chipset_fsp_util.c

@@ -66,6 +66,9 @@ static void ConfigureDefaultUpdData(UPD_DATA_REGION *UpdData)
 			UpdData->SerialPortBaudRate = 12;
 	}
 
+	if (!IS_ENABLED(CONFIG_CONSOLE_SERIAL))
+		UpdData->SerialPortType = 0;
+
 	/*
 	 * Memory Down
 	 */