package/flashrom: disable on microblaze and xtensa
Fixes:
- http://autobuild.buildroot.org/results/cdf0fb462eec143ea881d43cdd0c69c86122f66b
- http://autobuild.buildroot.org/results/df4d9702959b610762e87cf21fac9de62365dae6
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 582448032d97b9dc6b196d838f57ec7f695048ba)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>