Unable to set BMH credentials, Apply button greyed out.

Description of problem:

A cluster installed via ACM and nodes are showing as Unmanaged. When trying to set the BMH credential via console, the Apply button is not clickable(greyed out).

Version-Release number of selected component (if applicable): 4.11

How reproducible: Always

Steps to Reproduce:
1. Install a cluster via ACM
2. Setting a BMH credential on console
3.

Actual results:

The Apply button on the console screen is greyed out, unclickable.

Expected results:

Should be able to configure BHM credential

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