src/drivers/spi: introduce AMIC support

Add support for the AMIC A25L032 flash chip.

Change-Id: Ie8d441a923c6fbd18c16440b4571321652d934d5
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-on: http://review.coreboot.org/5252
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
diff --git a/src/drivers/spi/Kconfig b/src/drivers/spi/Kconfig
index a99199a..c5db969 100644
--- a/src/drivers/spi/Kconfig
+++ b/src/drivers/spi/Kconfig
@@ -31,6 +31,14 @@
 	help
 	  Select this option if you want SPI flash support in SMM.
 
+config SPI_FLASH_AMIC
+	bool
+	default y
+	depends on SPI_FLASH
+	help
+	  Select this option if your chipset driver needs to store certain
+	  data in the SPI flash and your SPI flash is made by AMIC.
+
 config SPI_FLASH_EON
 	bool
 	default y