package/flashrom: libftdi is optional, not mandatory

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 13121a1daa0de24934c2e53adeab919d60e317f3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/flashrom/Config.in

@@ -4,7 +4,6 @@ config BR2_PACKAGE_FLASHROM
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libusb
 	select BR2_PACKAGE_LIBUSB
 	select BR2_PACKAGE_LIBUSB_COMPAT
-	select BR2_PACKAGE_LIBFTDI
 	help
 	  flashrom is a utility for identifying, reading, writing,
 	  verifying and erasing flash chips. It is designed to flash

package/flashrom/flashrom.mk

@@ -7,10 +7,21 @@
 FLASHROM_VERSION = 1.0
 FLASHROM_SOURCE = flashrom-$(FLASHROM_VERSION).tar.bz2
 FLASHROM_SITE = https://download.flashrom.org/releases
-FLASHROM_DEPENDENCIES = libusb libusb-compat libftdi host-pkgconf
+FLASHROM_DEPENDENCIES = libusb libusb-compat host-pkgconf
 FLASHROM_LICENSE = GPL-2.0+
 FLASHROM_LICENSE_FILES = COPYING
 
+ifeq ($(BR2_PACKAGE_LIBFTDI),y)
+FLASHROM_DEPENDENCIES += host-pkgconf libftdi
+FLASHROM_MAKE_OPTS += \
+	CONFIG_FT2232_SPI=yes \
+	CONFIG_USBBLASTER_SPI=yes
+else
+FLASHROM_MAKE_OPTS += \
+	CONFIG_FT2232_SPI=no \
+	CONFIG_USBBLASTER_SPI=no
+endif
+
 ifeq ($(BR2_PACKAGE_PCIUTILS),y)
 FLASHROM_DEPENDENCIES += pciutils
 FLASHROM_MAKE_OPTS += CONFIG_ENABLE_LIBPCI_PROGRAMMERS=yes