Fix: Add install-rpm-rmr.sh prebuild script needed by GHA

This script needs to live in the tech repo since ci-management
might become deprecated after the migration to GHA.

Change-Id: I610c464b58acbf32727da4e3b745d4ac2bdeeda7
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
2 files changed