!1045 perf: hisi: delete global enable pmu from xxx_write_counter()

Merge Pull Request from: @hejunhao3 
 
UC PMU global enable register be setup in pmu callback pmu::enable(),
which also be will setup in pmu::start()->xxx_write_counter(). And it
will start statistical information when callback pmu:start() return,
not is pmu:enable() return. Therefore the driver counter counts more
data than normal. 
 
Link:https://gitee.com/openeuler/kernel/pulls/1045

 

Reviewed-by: Yang Shen <shenyang39@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>