config: close CONFIG_ARM64_ILP32

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4V6F8
CVE: NA

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No one currently uses IPL32, close it to simplify the code logic of
TASK_SIZE_MAX, thereby improving benchmark performance. For example,
all test items of libMicro can be improved by 4.89% on average.
Signed-off-by: NZhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: NCheng Jian <cj.chengjian@huawei.com>
Reviewed-by: Nliuchao (CR) <liuchao173@huawei.com>
Reviewed-by: Liu Chao (CR) < liuchao173@huawei.com >
Reviewed-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/configs/openeuler_defconfig

@@ -439,7 +439,6 @@ CONFIG_ARM64_PMEM_RESERVE=y
 CONFIG_ARM64_PMEM_LEGACY=m
 # CONFIG_ARM64_SW_TTBR0_PAN is not set
 CONFIG_ARM64_TAGGED_ADDR_ABI=y
-CONFIG_ARM64_ILP32=y
 CONFIG_AARCH32_EL0=y
 # CONFIG_KUSER_HELPERS is not set
 CONFIG_ARMV8_DEPRECATED=y