Description of problem:
Common templates - missing cross-validation between values in 'validation' section and actual requested resources.
The templates verify that requested resources meet the OS minimum requirements.
However, in the resources part of the template, the actual requested resource may violate the requirement.
For now it is relevant for memory.


Version-Release number of selected component (if applicable):
CNV 2.1.0, OCP 4.2.0


How reproducible:
100%

Steps to Reproduce:
1. Open RHEL8 template
oc get templates -n openshift rhel8-server-tiny-v0.6.2 -o yaml

2. Check the value of 'min' under validations --> minimal-required-memory
3. Check the requested memory size under resources.requests.memory

Actual results:
"min": 2147483648 whereas memory: 1G

Expected results:
memory should be equal to min

Additional info:

oc get templates -n openshift rhel8-server-tiny-v0.6.2 -o yaml
================================================================
    validations: |
      [
        {
          "name": "minimal-required-memory",
          "path": "jsonpath::.spec.domain.resources.requests.memory",
          "rule": "integer",
          "message": "This VM requires more memory.",
          "min": 2147483648
        },
      ]

...
...
...
          resources:
            requests:
              memory: 1G
================================================================