bpf: Sync uapi bpf.h header for the tooling infra

Both commit 91051f00 ("tcp: Dump bound-only sockets in inet_diag.")
and commit 985b8ea9ec7e ("bpf, docs: Fix bpf_redirect_peer header doc")
missed the tooling header sync. Fix it.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>