Description:
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Compute Resource create does not validate the zone name for GCE CR and creates the Compute Resource. If I provide any non-existence zone name while creating the CR, it doesn't validate if the zone is present or not and creates the CR.

How Reproducible:
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Always

Steps:
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1. Create a Compute Resource from a hammer with the zone(that doesn't exist in GCE).

Actual Behavior:
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1. The Compute Resource is created
2. No sign of error or warning for non-existence of zone.

Expected Behavior:
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1. Either the Compute Resource should not be created or should show a warning and create CR with zone.