Add header back in build.yaml
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 11988ef..0b2e666 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -168,6 +168,7 @@
                       'include/grpc/grpc.h',
                       'include/grpc/grpc_posix.h',
                       'include/grpc/grpc_security_constants.h',
+                      'include/grpc/load_reporting.h',
                       'include/grpc/slice.h',
                       'include/grpc/slice_buffer.h',
                       'include/grpc/status.h',