tidb-server: enable mutex profiling (#7510)
tidb-server: enable mutex profiling (#7510)


ngaut/tidb,pingcap/tidb,pingcap/tidb,qiuyesuifeng/tidb,c4pt0r/tidb,cosmtrek/tidb,kyle-wang/tidb,ngaut/tidb,coocood/tidb,ngaut/tidb,qiuyesuifeng/tidb,c4pt0r/tidb,ming-relax/tidb,kyle-wang/tidb,c4pt0r/tidb,pingcap/tidb,Nify/tidb,kyle-wang/tidb,ngaut/tidb,pingcap/tidb,Nify/tidb,XuHuaiyu/tidb,Cofyc/tidb,XuHuaiyu/tidb,tiancaiamao/tidb,c4pt0r/tidb,pingcap/tidb,kyle-wang/tidb,coocood/tidb,c4pt0r/tidb,wusphinx/tidb,kyle-wang/tidb,Cofyc/tidb,ngaut/tidb,mccxj/tidb,EvilMcJerkface/tidb,tiancaiamao/tidb,EvilMcJerkface/tidb,pingcap/tidb,wusphinx/tidb,kyle-wang/tidb,ngaut/tidb,mccxj/tidb,c4pt0r/tidb,ming-relax/tidb,cosmtrek/tidb