fixed the broken TPR_DEBUG

Summary:
https://fb.workplace.com/groups/1008959556589501/permalink/1943718926446888/
tpr bpf code was not compiling with TPR_DEBUG defined. Fixed it by using third-party/libbpf/master/src/bpf_endian.h instead of our own bpf_endian.h file.

Reviewed By: lima1756

Differential Revision: D77147727

fbshipit-source-id: 25d5331df94d129b0c132afb5bdae0062a105cad

Author: Fei Chen

katran/tpr/bpf/bpf_endian.h

@@ -8,9 +8,9 @@
 #include <bpf/vmlinux/vmlinux.h>
 #endif
 
+#include <bpf/bpf_endian.h>
 #include <bpf/bpf_helpers.h>
 
-#include "bpf_endian.h"
 #include "tcp_pkt_router_consts.h"
 #include "tcp_pkt_router_maps.h"
 #include "tcp_pkt_router_structs.h"

katran/tpr/bpf/tcp_pkt_router_common.h

@@ -27,12 +27,13 @@ static inline bool should_ignore_due_to_kde(struct bpf_sock_ops* skops) {
     kde_opt.kind = KDE_CLT_TCP_HDR_OPT_KIND;
     int ret = bpf_load_hdr_opt(skops, &kde_opt, sizeof(kde_opt), load_flags);
     if (ret == KDE_CLT_TCP_HDR_OPT_V2_LEN) {
-      if (s_info->kde_zones)
+      if (s_info->kde_zones) {
         if ((s_info->kde_zones & kde_opt.zone) == kde_opt.zone) {
           return true;
         } else if (s_info->kde_zones == KDE_ZONE_ALL) {
           return true;
         }
+      }
     }
   }
   return false;