sync with latest libbpf (iovisor#2576)

yonghong-song · web-flow · commit eb1a2f64a470 · 2019-10-28T15:22:07.000-07:00
This should fix the ARM build issue reported in issue iovisor#83. Signed-off-by: Yonghong Song <yhs@fb.com>
diff --git a/src/cc/libbpf b/src/cc/libbpf
@@ -1 +1 @@
-Subproject commit a30df5c09fb3941fc42c4570ed2545e7057bf82a
+Subproject commit f02e248ae125a30564b74900ed2fce40128dc4e0
