livepatch/ppc32: Add support for longjump

euler inclusion
category: feature
bugzilla: 51924
CVE: NA

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The offset of the direct jump under PPC is 32M. Longer jumps are required
to exceed this range.

Therefore, long jumps of instruction patched when enable livepatch module
is supported here.

Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Tested-by: Wang Feng <wangfeng59@huawei.com>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>

Signed-off-by: Dong Kai <dongkai11@huawei.com>

Signed-off-by: Ye Weihua <yeweihua4@huawei.com>
Reviewed-by: Kuohai Xu <xukuohai@huawei.com>
Reviewed-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>