arm64: Add MIDR encoding for PHYTIUM CPUs

uniontech inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I41AUQ


CVE: NA

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Adding the MIDR encodings for PHYTIUM 2000+ and 2500 CPUs.

Signed-off-by: Guo Hui <guohui@uniontech.com>
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Cc: Guo Hui <guohui@uniontech.com>
Cc: Cheng Jian <cj.chengjian@huawei.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Xiuqi Xie <xiexiuqi@huawei.com>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Cheng Jian <cj.chengjian@huawei.com>