sync: latest libbpf changes from kernel

Syncing latest libbpf commits from kernel repository.
Baseline bpf-next commit:   3c3bd542ffbb2ac09631313ede46ae66660ae550
Checkpoint bpf-next commit: d20b41115ad53293201cc07ee429a38740cb056b
Baseline bpf commit:        3776f3517ed94d40ff0e3851d7ce2ce17b63099f
Checkpoint bpf commit:      3776f3517ed94d40ff0e3851d7ce2ce17b63099f

Grant Seltzer (1):
  libbpf: Rename libbpf documentation index file

 docs/{libbpf.rst => index.rst}    | 8 ++++++++
 docs/libbpf_naming_convention.rst | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)
 rename docs/{libbpf.rst => index.rst} (75%)

--
2.31.1

CHECKPOINT-COMMIT

@@ -1 +1 @@
-3c3bd542ffbb2ac09631313ede46ae66660ae550
+d20b41115ad53293201cc07ee429a38740cb056b