sync: latest libbpf changes from kernel

Syncing latest libbpf commits from kernel repository.
Baseline bpf-next commit:   da927466a152a9497c05926a95c6aebba6d3ad5b
Checkpoint bpf-next commit: 5e5b03d163e15a40b0fa57c70b4e8edd549b0b98
Baseline bpf commit:        9e8acd9c44a0dd52b2922eeb82398c04e356c058
Checkpoint bpf commit:      cd7455f1013ef96d5cbf5c05d2b7c06f273810a6

Alexei Starovoitov (3):
  bpf: Add attach_btf_id attribute to program load
  libbpf: Auto-detect btf_id of BTF-based raw_tracepoints
  bpf: Check types of arguments passed into helpers

Andrii Nakryiko (5):
  tools: Sync if_link.h
  libbpf: Add bpf_program__get_{type, expected_attach_type) APIs
  libbpf: Add uprobe/uretprobe and tp/raw_tp section suffixes
  libbpf: Teach bpf_object__open to guess program types
  libbpf: Make DECLARE_LIBBPF_OPTS macro strictly a variable declaration

John Fastabend (1):
  bpf, libbpf: Add kernel version section parsing back

Kefeng Wang (1):
  tools, bpf: Rename pr_warning to pr_warn to align with kernel logging

 include/uapi/linux/bpf.h     |  28 +-
 include/uapi/linux/if_link.h |   2 +
 src/bpf.c                    |   3 +
 src/btf.c                    |  56 +--
 src/btf_dump.c               |  18 +-
 src/libbpf.c                 | 830 +++++++++++++++++++----------------
 src/libbpf.h                 |  24 +-
 src/libbpf.map               |   2 +
 src/libbpf_internal.h        |   8 +-
 src/xsk.c                    |   4 +-
 10 files changed, 539 insertions(+), 436 deletions(-)

--
2.17.1

BPF-CHECKPOINT-COMMIT

@@ -1 +1 @@
-9e8acd9c44a0dd52b2922eeb82398c04e356c058
+cd7455f1013ef96d5cbf5c05d2b7c06f273810a6

CHECKPOINT-COMMIT

@@ -1 +1 @@
-da927466a152a9497c05926a95c6aebba6d3ad5b
+5e5b03d163e15a40b0fa57c70b4e8edd549b0b98