psi: introduce psi_v1 boot parameter

hulk inclusion
category: feature
bugzilla: 182979 https://gitee.com/openeuler/kernel/issues/I4HOX6



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Instead using static kconfig CONFIG_PSI_CGROUP_V1, we introduce a boot
parameter psi_v1 to enable psi cgroup v1 support. Default it is
disabled

Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Xunlei Pang <xlpang@linux.alibaba.com>
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>