mm/sharepool: Fix kabi borken in sp_group_master

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5DS9S
CVE: NA

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

The sp_group_master structure is used only in sharepool subsys and no
other drivers use it.
Signed-off-by: NWang Wensheng <wangwensheng4@huawei.com>
Reviewed-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

include/linux/share_pool.h

@@ -10,6 +10,7 @@
 #include <linux/hashtable.h>
 #include <linux/numa.h>
 #include <linux/jump_label.h>
+#include <linux/kabi.h>
 
 #define SP_HUGEPAGE		(1 << 0)
 #define SP_HUGEPAGE_ONLY	(1 << 1)
@@ -172,7 +173,7 @@ struct sp_group_master {
 	 * Used to apply for the shared pool memory of the current process.
 	 * For example, sp_alloc non-share memory or k2task.
 	 */
-	struct sp_group *local;
+	KABI_EXTEND(struct sp_group *local)
 };
 
 /*