sb/intel/{i82371eb/i82801dx}: select BOOT_DEVICE_NOT_SPI_FLASH

SPI support started with Intel ICH7.

Change-Id: I7cce5787e1241403e86c287273627b1c359ec94e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52792
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/southbridge/intel/i82371eb/Kconfig b/src/southbridge/intel/i82371eb/Kconfig
index d0eec0e..03e70a6 100644
--- a/src/southbridge/intel/i82371eb/Kconfig
+++ b/src/southbridge/intel/i82371eb/Kconfig
@@ -3,4 +3,5 @@
 	select SOUTHBRIDGE_INTEL_COMMON_SMBUS
 	select SOUTHBRIDGE_INTEL_COMMON_RTC
 	select SOUTHBRIDGE_INTEL_COMMON_RESET
+	select BOOT_DEVICE_NOT_SPI_FLASH
 	bool