buildstats: Fix tracebacks for early task failures

If a failure occurs early in the task, its possible we can have a
TaskFailed before the TaskStarted event can be triggered. This in
turn causes another traceback as the directory buildstats writes
files into doesn't exist.

Ensure the directory exists so we can see the original error.

(From OE-Core rev: bd0a65ec47ebf55c549c9ef276b201b72396ce2b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions