add fd holder file to begetutil

Signed-off-by: Nlaiguizhong <laiguizhong@huawei.com>
Change-Id: Ic7ad0c4f4cedf56161993a2d5b534858222be130

interfaces/innerkits/BUILD.gn

@@ -149,6 +149,7 @@ if (defined(ohos_lite)) {
 
   ohos_shared_library("libbegetutil") {
     sources = [
+      "fd_holder/fd_holder.c",
       "reboot/init_reboot_innerkits.c",
       "service_control/service_control.c",
     ]