build,tools: update make-v8.sh for ppc64le

PR-URL: https://github.com/nodejs/node/pull/24293
Fixes: https://github.com/nodejs/build/issues/1536


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>