* Let functional tests build without external MPI
* Fix error conditions when using uuid startup with internal MPI
* Do not abort if libibverbs is not found but not using GDA
* Enabled RO functional test initialized with TEST_UUID
* Reduce load time for ro backend_can_run and prevent mpilib_dlclose
crashing
* Fix case TEST_UUID=1, ROCSHMEM_BACKEND='' (autoloading gda)
[ROCm/rocshmem commit: c99bc21e10]