Describe the solution you'd like
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Need to validate the user given global transit gateway option is valid for given powervs and vpc region, if not valid then do not allow the creation.
Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]
/kind feature /area provider/ibmcloud
Describe the solution you'd like [A clear and concise description of what you want to happen.] Need to validate the user given global transit gateway option is valid for given powervs and vpc region, if not valid then do not allow the creation.
Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]