IDevice: Update icons indicating device state.
Simple dots in - red (device disconnected) - yellow (device connected but not ready to use) and - green (device connected and ready to use). Change-Id: I04155a917e23351bb9d1125a432957ef05b64ef5 Reviewed-by:Tobias Hunger <tobias.hunger@nokia.com> Reviewed-by:
Christian Kandeler <christian.kandeler@nokia.com>

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