!4657 perf/x86/amd/uncore: Fix memory leak for events array

Merge Pull Request from: @kile2009 
 
Fixes: 39621c58 ("perf/x86/amd/uncore: Use dynamic events array")

backport the patch from the mainline to address the memory leak issue 
 
Link:https://gitee.com/openeuler/kernel/pulls/4657

 

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