fix checksumType refactoring
fix checksumType refactoring

savaki/tchannel,benfleis/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,chenwenbin928/tchannel,RyanTech/tchannel,bunnyblue/tchannel,i/tchannel,vanloswang/tchannel,i/tchannel,hustxiaoc/tchannel,savaki/tchannel,bunnyblue/tchannel,sasa233/tchannel,hustxiaoc/tchannel,savaki/tchannel,i/tchannel,Zirpon/tchannel,sasa233/tchannel,RyanTech/tchannel,benfleis/tchannel,Zirpon/tchannel,benfleis/tchannel,RyanTech/tchannel,hustxiaoc/tchannel,sasa233/tchannel,vanloswang/tchannel,chenwenbin928/tchannel,Zirpon/tchannel,bunnyblue/tchannel