Adjust cloud configuration INI files

* Rename my_config.ini to cloud_config.ini.
* Move a copy into coral-cloudiot, so coral-enviro isn't required.
* Set default ini file in case a path isn't provided.
* Disable CloudIoT if no config file is found.
* Run autopep8 on both coral projects.

Change-Id: Ic29696a04597fcc84f2f2956d07775bd7e0aa1ce
9 files changed