Found some issues when setting dataDisks.managedDisk under controlPlane and compute section in install-config

In install-config.yaml, specify fields under dataDisks.managedDisk except storageAccountType
===========
compute:
- architecture: amd64
  hyperthreading: Enabled
  name: worker
  platform:
    azure:
      type: Standard_DC4ads_v5
      dataDisks:
      - cachingType: ReadWrite
        diskSizeGB: 256
        lun: 1
        nameSuffix: vardisk
        managedDisk:
          diskEncryptionSet:
            id: /subscriptions/53b8f551-f0fc-4bea-8cba-6d1fefd54c8a/resourceGroups/jima-test-rg/providers/Microsoft.Compute/diskEncryptionSets/jima-test-des
          securityProfile:
            securityEncryptionType: VMGuestStateOnly
  diskSetup:
  - type: user-defined
    userDefined:
      platformDiskID: vardisk
      mountPath: /var
  replicas: 3
controlPlane:
  architecture: amd64
  hyperthreading: Enabled
  name: master
  platform:
    azure:
      type: Standard_DC4ads_v5
      dataDisks:
      - cachingType: ReadWrite
        diskSizeGB: 256
        lun: 1
        nameSuffix: uddisk
        managedDisk:
          diskEncryptionSet:
            id: /subscriptions/53b8f551-f0fc-4bea-8cba-6d1fefd54c8a/resourceGroups/jima-test-rg/providers/Microsoft.Compute/diskEncryptionSets/jima-test-des
          securityProfile:
            securityEncryptionType: VMGuestStateOnly
  diskSetup:
  - type: user-defined
    userDefined:
      platformDiskID: uddisk
      mountPath: /var/lib/containers
  replicas: 3

create cluster, installation fails to create control plane machines due to empty storageAccountType
ERROR failed to fetch Cluster: failed to generate asset "Cluster": failed to create cluster: failed to create control-plane manifest: admission webhook "validation.azuremachine.infrastructure.cluster.x-k8s.io" denied the request: AzureMachine.infrastructure.cluster.x-k8s.io "jimadisk-9wbww-master-0" is invalid: dataDisks.managedDisk.StorageAccountType: Required value: the Storage Account Type for Managed Disk cannot be empty 

If not specifying managedDisk under dataDisks object, I see storage account type for new created disk is "Premium_LRS"

   built from PR https://github.com/openshift/installer/pull/9706

    Always

    1. Configure dataDisks with managedDisk settings under both controlaPlane and compute sections
    2. Create cluster
    3.
    

    Installation failed

    Installation succeeded