after a commit for rmr teh module testing coverage dropped. This needs to be fixed

ric-plt/lib/rmr 86,1->70,4 // no bugs (2021-09-07 → 2021-11-23)

https://gerrit.o-ran-sc.org/r/c/ric-plt/lib/rmr/+/6934

test coverage can be seen here:

https://sonarcloud.io/organizations/o-ran-sc/projects?search=ric-plt&sort=name (scroll down to "ric-plt-lib-rmr" and ignore the outdated ""ric-plt-lib-rmr-c" and also ignore the report "ric-plt-lib-rmr-py"