sync: latest libbpf changes from kernel

Syncing latest libbpf commits from kernel repository.
Baseline bpf-next commit:   2977282b63c3b6f112145ecf0bcefff0c65bd3ac
Checkpoint bpf-next commit: 2977282b63c3b6f112145ecf0bcefff0c65bd3ac
Baseline bpf commit:        0f57a1e522f413e87852e632f55de4723e511939
Checkpoint bpf commit:      b2f9f1535bb93ee5fa2ea30ac1c26fa0d676154c

Jakub Bogusz (1):
  libbpf: Fix libbpf hashmap on (I)LP32 architectures

 src/hashmap.h | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--
2.24.1

BPF-CHECKPOINT-COMMIT

@@ -1 +1 @@
-0f57a1e522f413e87852e632f55de4723e511939
+b2f9f1535bb93ee5fa2ea30ac1c26fa0d676154c