GCE hammer Compute Resource info shows zone field as url field. 

How Reproducible:
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Always

Steps:
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1. Create a GCE Compute resource with zone.
2. hammer info the GCE CR.
# hammer compute-resource info --id 1

Actual Behavior:
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1. The GCE info shows zone field as an url field.

Id:            1
Name:          gceCR
Provider:      Google
*Url:*           us-central1-a


Expected Behavior:
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1. Hammer CR info should show zone field as zone field and not the url field.