Description of problem:
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During RHHI-V deployment, auto-populate the LV cache size for the other hosts, when the value for the first host is provided.

Currently when the LV cache size of the first host is provided, the lV cache size of other 2 hosts are still retains the constant value '1'

Version-Release number of selected component (if applicable):
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cockpit-ovirt-dashboard-0.14.9

How reproducible:
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Always

Steps to Reproduce:
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1. Start RHHI-V /Hyperconverged deployment from web console (cockpit)
2. On the bricks tab, enable LV cache, and populate the LV cache size
3. Go to the second and third host, and look for value of LV cache

Actual results:
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LV cache size on the host2 and host3, remains as '1'

Expected results:
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Device names gets autopopulated on host2 and host3, similarly the LV cache size should also get auto-populated