fix bug of compile ipc test cases failed

ipc/test/auxiliary/native/include/test_service_command.h

@@ -16,7 +16,7 @@
 #ifndef OHOS_IPC_TEST_SERVICE_COMMAND_H
 #define OHOS_IPC_TEST_SERVICE_COMMAND_H
 
-enum class TestCommand : int {
+enum TestCommand {
     TEST_CMD_NONE = 0,
     TEST_CMD_SYNC_TRANS = 1,
     TEST_CMD_ASYNC_TRANS = 2,

ipc/test/auxiliary/native/src/main_client.cpp

@@ -45,7 +45,7 @@ int main(int argc, char *argv[])
     int result = 0;
     TestCommand commandId = TestCommand::TEST_CMD_SYNC_TRANS;
     if (argc > 1) {
-        commandId = { atoi(argv[1]) };
+        commandId = TestCommand(atoi(argv[1]));
     } else {
         ZLOGE(LABEL, "unknown command");
     }