kabi: reserve space for struct ptp_clock

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4KFY7?from=project-issue
CVE: NA

-------------------------------

reserve space for struct ptp_clock.
Signed-off-by: NWang ShaoBo <bobo.shaobowang@huawei.com>
Reviewed-by: NCheng Jian <cj.chengjian@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/ptp/ptp_private.h

@@ -46,6 +46,10 @@ struct ptp_clock {
 	const struct attribute_group *pin_attr_groups[2];
 	struct kthread_worker *kworker;
 	struct kthread_delayed_work aux_work;
+	KABI_RESERVE(1)
+	KABI_RESERVE(2)
+	KABI_RESERVE(3)
+	KABI_RESERVE(4)
 };
 
 /*