Enable zvmsdk uwsgi threads in sample config file
Enable zvmsdk uwsgi threads in sample config file

As sdk API works in sync mode, too few uwsgi workers will block
next calls. Enable threads in sample config file.

Change-Id: Ic8755559dce81076c33a8e6aad32becd557b1e87

mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk,mfcloud/python-zvm-sdk