Add locate to installed packages in Dockerfile  (#457)
Add locate to installed packages in Dockerfile  (#457)

* Add locate to installed packages in Dockerfile to support locate command in tensorflow configure script

* Change locate to mlocate

sreddybr3/serving,tensorflow/serving,sreddybr3/serving,penguin138/serving,penguin138/serving,penguin138/serving,sreddybr3/serving,tensorflow/serving,sreddybr3/serving,tensorflow/serving,penguin138/serving,tensorflow/serving