Commit c6f501d479e8 fixed an issue where some tests were incorrectly marked as unsupported for a bootstrapping build. This exposed in our 'slow' full-bootstrap qemu-system CI that the fdr-mode.cpp fails on RISC-V. We mark it as unsupported. I believe _xray_ArgLoggerEntry needs to be implemented in xray_trampoline_risc*.S for this to work.