add ability to configure seccompProfile rbac-manager deployment helm chart values

[mkhodave]

When Kubernetes Pod Security Standards implemented as Kyverno policies on k8s cluster, rbac-manager shows policy failed in PolicyReport as following

• category: Pod Security Standards (Restricted)
  message: 'validation error: Use of custom Seccomp profiles is disallowed. The fields
  spec.securityContext.seccompProfile.type, spec.containers[].securityContext.seccompProfile.type,
  spec.initContainers[].securityContext.seccompProfile.type, and spec.ephemeralContainers[*].securityContext.seccompProfile.type
  must be set to RuntimeDefault or Localhost. rule autogen-check-seccomp-strict[0]
  failed at path /spec/template/spec/securityContext/seccompProfile/ rule autogen-check-seccomp-strict[1]
  failed at path /spec/template/spec/containers/0/securityContext/seccompProfile/'

Describe the solution you'd like
add ability to configure seccompProfile rbac-manager deployment helm chart values as its not available now in https://github.com/FairwindsOps/charts/blob/master/stable/rbac-manager/values.yaml#L56

Describe alternatives you've considered
NA

Additional context
NA

[mkhodave]

allowed values will be RuntimeDefault or Localhost

[sudermanjr]

Please feel free to open a PR for this, thanks!

[fadecore]

@mkhodave
You can just apply your own values file and add the missing piece you need.
Just use the following part and remember to use always the complete part of the securityContext, not just the part you want to add

# securityContext -- securityContext to apply to the rbac-manager container
securityContext:
  allowPrivilegeEscalation: false
  privileged: false
  readOnlyRootFilesystem: true
  runAsNonRoot: true
  capabilities:
    drop:
      - ALL
  seccompProfile:
    type: RuntimeDefault