arm32: kaslr: Avoid using the -fpic and fno-pic parameters together

hulk inclusion
category: bugfix
bugzilla: 188368 https://gitee.com/openeuler/kernel/issues/I6EEK7


CVE: NA

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Avoid using conflicting compilation parameters during compilation,
so we move -fpic from KBUILD_CFLAGS to CFLAGS_KERNEL to avoid
using -fpic and fno-pic parameters together.

Fixes: 6bc05b0a ("arm32: kaslr: Fix the bug of module install failure")
Signed-off-by: Cui GaoSheng <cuigaosheng1@huawei.com>
Reviewed-by: Wang Weiyang <wangweiyang2@huawei.com>
Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>