!118 add openeuler_defconfig file support for ppc64le compile

Merge Pull Request from: @kmf 
 
 This is required to support ppc64le.
 
 
Link:https://gitee.com/openeuler/kernel/pulls/118 
Reviewed-by: Liu Chao <liuchao173@huawei.com> 
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>