Added parprimes.c for BPF contention lab
Added parprimes.c for BPF contention lab

goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop,goldshtn/linux-tracing-workshop