util/ebpf: fix deprecation warning

The function bpf_program__title has been deprecated in favor of
bpf_program__section_name.

(cherry picked from commit d477d3a878)

configure.ac

@@ -1836,6 +1836,7 @@
         if test "$have_xdp" = "yes"; then
             AC_DEFINE([HAVE_PACKET_XDP],[1],[XDP support is available])
         fi
+        AC_CHECK_FUNCS(bpf_program__section_name)
     fi;
 
   # Check for DAG support.

src/util-ebpf.c

@@ -365,7 +365,11 @@ int EBPFLoadFile(const char *iface, const char *path, const char * section,
 
     /* Let's check that our section is here */
     bpf_object__for_each_program(bpfprog, bpfobj) {
+#ifdef HAVE_BPF_PROGRAM__SECTION_NAME
+        const char *title = bpf_program__section_name(bpfprog);
+#else
         const char *title = bpf_program__title(bpfprog, 0);
+#endif
         if (!strcmp(title, section)) {
             if (config->flags & EBPF_SOCKET_FILTER) {
                 bpf_program__set_socket_filter(bpfprog);