Feature request: list default available failure domains for CAPG cluster

[faiq]

trafficstars

/kind feature

Describe the solution you'd like [A clear and concise description of what you want to happen.]

As a cluster administrator, I'd like a list of available failure domains for the GCP Cluster I have created and for that to be reflected in the cluster status.

Other Cluster API provider such as CAPA and CAPZ provide this functionality see:

• CAPZ status
• CAPA status

Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]