sync: Pull latest bpftool changes from kernel

Syncing latest bpftool commits from kernel repository.
Baseline bpf-next commit:   e63985ecd22681c7f5975f2e8637187a326b6791
Checkpoint bpf-next commit: 14bb1e8c8d4ad5d9d2febb7d19c70a3cf536e1e5
Baseline bpf commit:        2487007aa3b9fafbd2cb14068f49791ce1d7ede5
Checkpoint bpf commit:      443574b033876c85a35de4c65c14f7fe092222b2

Alexei Starovoitov (4):
  bpf: Introduce bpf_arena.
  bpf: Disasm support for addr_space_cast instruction.
  bpftool: Recognize arena map type
  libbpf, selftests/bpf: Adjust libbpf, bpftool, selftests to match LLVM

Andrii Nakryiko (3):
  bpftool: rename is_internal_mmapable_map into is_mmapable_map
  libbpf: Recognize __arena global variables.
  bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs

Kui-Feng Lee (1):
  bpftool: Cast pointers for shadow types explicitly.

Quentin Monnet (3):
  bpftool: Enable libbpf logs when loading pid_iter in debug mode
  bpftool: Remove unnecessary source files from bootstrap version
  bpftool: Clean up HOST_CFLAGS, HOST_LDFLAGS for bootstrap bpftool

Yonghong Song (2):
  bpftool: Fix missing pids during link show
  bpf: Sync uapi bpf.h to tools directory

 docs/bpftool-map.rst        |  2 +-
 include/uapi/linux/bpf.h    | 20 ++++++++++++++++++--
 src/Makefile                | 14 ++++++--------
 src/gen.c                   | 34 ++++++++++++++++++++++++----------
 src/kernel/bpf/disasm.c     | 10 ++++++++++
 src/map.c                   |  2 +-
 src/pids.c                  | 19 ++++++++++++-------
 src/skeleton/pid_iter.bpf.c |  4 ++--
 8 files changed, 74 insertions(+), 31 deletions(-)

Signed-off-by: Quentin Monnet <qmo@kernel.org>

BPF-CHECKPOINT-COMMIT

@@ -1 +1 @@
-2487007aa3b9fafbd2cb14068f49791ce1d7ede5
+443574b033876c85a35de4c65c14f7fe092222b2

CHECKPOINT-COMMIT

@@ -1 +1 @@
-e63985ecd22681c7f5975f2e8637187a326b6791
+14bb1e8c8d4ad5d9d2febb7d19c70a3cf536e1e5