Description:
During importing a host from vmware, the operating system field does not populate. It only populates after a failed validation error after clicking submit.

Steps to reproduce:
1. Go to Infrastructure -> Compute Resources -> Select a CR
2. In the Virtual Machines tab, select a host and import it
3. Go to Operating Systems tab and try filling in operating system field
4. Try first failed submit
5. Fields are populated in the OS tab

Actual Results:
Operating System field is not populated 

Expected Results:
Operating System field shall be populated