util: Use correct output dir
util: Use correct output dir

When twister_launcher.py looks at the output to determine if there were
skipped tests or to upload results, it hardcoded the output dir.
Instead, inspect the command line to see if the user modified the output
dir and look there for the results instead.

BRANCH=None
BUG=None
TEST=./twister --outdir twister-out-foobar

Signed-off-by: Jeremy Bettis <4df7b5147fee087dca33c181f288ee7dbf56e022@google.com>
Change-Id: Ia5c15dfe3eb954df29c3912d037abebfc0b209f9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/4004757
Commit-Queue: Al Semjonovs <c3a2ecb550cad1e7d5a943ca6241377f7b43ffc4@google.com>
Auto-Submit: Jeremy Bettis <4df7b5147fee087dca33c181f288ee7dbf56e022@chromium.org>
Tested-by: Jeremy Bettis <4df7b5147fee087dca33c181f288ee7dbf56e022@chromium.org>
Commit-Queue: Jeremy Bettis <4df7b5147fee087dca33c181f288ee7dbf56e022@chromium.org>
Reviewed-by: Al Semjonovs <c3a2ecb550cad1e7d5a943ca6241377f7b43ffc4@google.com>
Code-Coverage: Zoss <345cf107e82c70959d46f59d98bddc98ce458aff@prod.google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec