Description of problem:
Add the google idp hostedDomain validation on UI

Version-Release number of selected component (if applicable):

How reproducible:
always

Steps to Reproduce:
1. Login OCM portal and create one cluster
2. Create google idp with the hostedDomain URI, for example "https://redhat.com"

Actual results:
2. The idp is created but it doesn't work

Expected results:
2. There should be validation for the hostedDomain of the google idp

Additional info:
More information see https://issues.redhat.com/browse/SDA-6472