Rename 'Configuring' state to 'Ready to deploy'

'Configuring' is a confusing state since it implies
that some process is running on the background.
But that is not true.
Status 'ready to deploy' indicates that deployment has not been started,
but ready to begin after corresponding button will be pushed

Change-Id: Ia3f0c9036aa989c974fb64563984324ace7bea41
Closes-Bug: #1357220