aws/request: Fix NewErrParamMinLen to use correct ParamMinLenErrCode (#1336)
aws/request: Fix NewErrParamMinLen to use correct ParamMinLenErrCode (#1336)

Fixes the `NewErrParamMinLen` function returning the wrong error code. `ParamMinLenErrCode` should be returned not `ParamMinValueErrCode`.

Fix #1335 

radeksimko/aws-sdk-go,yxd-hde/aws-sdk-go,calgaryscientific/aws-sdk-go,yxd-hde/aws-sdk-go,radeksimko/aws-sdk-go,aws/aws-sdk-go,agworld/aws-sdk-go,calgaryscientific/aws-sdk-go,jasdel/aws-sdk-go,radeksimko/aws-sdk-go,agworld/aws-sdk-go,agworld/aws-sdk-go,yxd-hde/aws-sdk-go,calgaryscientific/aws-sdk-go,yxd-hde/aws-sdk-go,agworld/aws-sdk-go,radeksimko/aws-sdk-go,calgaryscientific/aws-sdk-go