[Relay]Allow every runtime module to handle constants (#5885)
[Relay]Allow every runtime module to handle constants (#5885)

* update source module

* address comment
dmlc/tvm,Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,Laurawly/tvm-1,sxjscience/tvm,sxjscience/tvm,dmlc/tvm,sxjscience/tvm,sxjscience/tvm,dmlc/tvm,dmlc/tvm,tqchen/tvm,Laurawly/tvm-1,Laurawly/tvm-1,Laurawly/tvm-1,tqchen/tvm,tqchen/tvm,Laurawly/tvm-1,Laurawly/tvm-1,tqchen/tvm,sxjscience/tvm,tqchen/tvm,dmlc/tvm,Laurawly/tvm-1,sxjscience/tvm,sxjscience/tvm,sxjscience/tvm,dmlc/tvm,tqchen/tvm,dmlc/tvm,dmlc/tvm,tqchen/tvm,tqchen/tvm,tqchen/tvm,sxjscience/tvm,tqchen/tvm,Laurawly/tvm-1