Move MNIST pointers to mirror hosted by the CVDF on Google Cloud. Fixes: #9031 Change: 152504901
Move MNIST pointers to mirror hosted by the CVDF on Google Cloud.
Fixes: #9031
Change: 152504901

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