I a file in configs/* has no suffix, then the default configuration will override the results of the build generated by the configfile from configs/*. Fix this by adding a '_' to the buildname. Change-Id: Ic47105fafca41f1905a6569943079623bec5405a Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/56041 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>