Add check for BUILD_WITH_LIBBPF wherever bpf libraries are used

Author: hp77-creator

runtime/src/bpf_map/userspace/prog_array.cpp

@@ -4,10 +4,12 @@
  * All rights reserved.
  */
 
-#if __linux__
-#include <bpf/bpf.h>
-#include <linux/bpf.h>
+#if __linux__ 
+#if BPFTIME_BUILD_WITH_LIBBPF
+#include "bpf/bpf.h"
+#include "linux/bpf.h"
 #include <bpf/libbpf.h>
+#endif
 #include <gnu/lib-names.h>
 #elif __APPLE__
 #include "bpftime_epoll.h"