Update salt config for apiserver to support Azure.

Shall I add the grain `cloud: gce` to the default salt scripts, and change around the `if grains['cloud'] != 'azure'` to `if grains['cloud'] == 'gce'`? Or leave as is?
Is this returning a different value in your environment then just using the built-in values provided by Salt grains?

grains['fqdn'] should hold the fully qualified domain name, but maybe there is something unique about your setup?
grains['id'] also should hold the same value by default.

Just looking to see if we can avoid defining a new field.