junit reports were kept around (and appended to) in some cases, leading
to duplicate reports on jenkins.
Drop old per-mainboard reports before building said boards, and do the
same for the tools (reported thrice).
Change-Id: I74a035587bbf917dca85ba6fc74621c583efe9a2
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/12280
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
5ab5a39d2e