sync: latest libbpf changes from kernel

Syncing latest libbpf commits from kernel repository.
Baseline bpf-next commit:   d20b41115ad53293201cc07ee429a38740cb056b
Checkpoint bpf-next commit: 47bb27a20d6ea22cd092c1fc2bb4fcecac374838
Baseline bpf commit:        3776f3517ed94d40ff0e3851d7ce2ce17b63099f
Checkpoint bpf commit:      3776f3517ed94d40ff0e3851d7ce2ce17b63099f

Daniel Xu (1):
  bpf: Add bpf_task_pt_regs() helper

Dave Marchevsky (1):
  bpf: Migrate cgroup_bpf to internal cgroup_bpf_attach_type enum

 include/uapi/linux/bpf.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

--
2.30.2

CHECKPOINT-COMMIT

@@ -1 +1 @@
-d20b41115ad53293201cc07ee429a38740cb056b
+47bb27a20d6ea22cd092c1fc2bb4fcecac374838