Add uprobestats path to BpfLoader. am: 9c56a5a699 am: b8fe151a9b

Original change: https://android-review.googlesource.com/c/platform/system/bpf/+/2907041

Change-Id: Ib9fcb8fa4fde4c9ad13d7dc6e5c184701733e4e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>