[Cherry-Pick] [BugFix] fix mtp cache attaching for pd disaggregation (#5884)#5885

EmmonsCurse merged 2 commits intoPaddlePaddle:release/2.4PaddlePaddle/FastDeploy:release/2.4from

liyonghua0910:release/2.4+fix_pd_mtp_0105liyonghua0910/FastDeploy:release/2.4+fix_pd_mtp_0105Copy head branch name to clipboard