[automerger skipped] bpf_base_test: fix cgroup2 hardcoded path am: 7d5534c37e -s ours

am skip reason: skipped by user maze

Original change: https://android-review.googlesource.com/c/platform/system/netd/+/1479484

Change-Id: I15f3e8fe93dca2c1075f3bcf1bdddb7e74273c1a