package/flashrom: add BR2_PACKAGE_FLASHROM_ARCH_SUPPORTS

Fixes:
 - http://autobuild.buildroot.org/results/22c72369cd5b7a8200bb03564bdc342ed026ccac
 - http://autobuild.buildroot.org/results/ef6869bc40382145fad1079b79107275c4973494
 - http://autobuild.buildroot.org/results/09d857102c469ede1db0bff8aa0dcd82a4001eaf

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Thomas: change formatting of new option.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

(cherry picked from commit 10a95d545a9fb6cc00f076bd323cbc9ee352590f)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/flashrom/Config.in

@@ -1,6 +1,18 @@
+config BR2_PACKAGE_FLASHROM_ARCH_SUPPORTS
+	bool
+	default y if BR2_aarch64 || BR2_aarch64_be
+	default y if BR2_arm || BR2_armeb
+	default y if BR2_i386 || BR2_x86_64
+	default y if BR2_m68k
+	default y if BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
+	default y if BR2_riscv
+	default y if BR2_sh
+	default y if BR2_sparc || BR2_sparc64
+
 config BR2_PACKAGE_FLASHROM
 	bool "flashrom"
-	depends on !BR2_microblaze && !BR2_xtensa # platform.h
+	depends on BR2_PACKAGE_FLASHROM_ARCH_SUPPORTS
 	help
 	  flashrom is a utility for identifying, reading, writing,
 	  verifying and erasing flash chips. It is designed to flash