libbpf: Fix a couple of typos

This change fixes a couple of typos that were encountered while studying
the source code.

Signed-off-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220601154025.3295035-1-deso@posteo.net
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 5b34ca5..fa27969 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -107,7 +107,7 @@ struct bpf_object_open_attr {
 };
 
 struct bpf_object_open_opts {
-	/* size of this struct, for forward/backward compatiblity */
+	/* size of this struct, for forward/backward compatibility */
 	size_t sz;
 	/* object name override, if provided:
 	 * - for object open from file, this will override setting object