(AzureCXP) fixes MicrosoftDocs/azure-docs#52642

Updated the PowerShell script:
$administrative unitObj = Get-AzureADAdministrativeUnit -Filter "displayname eq 'Test administrative unit 2'"
to :
$administrative = Get-AzureADAdministrativeUnit -Filter "displayname eq 'Test administrative unit 2'"

Author: TechFrenzy-SM

articles/active-directory/users-groups-roles/roles-admin-units-assign-roles.md

@@ -47,7 +47,7 @@ Select the role to be assigned and then select **Add assignments**. This will sl
 
 ### PowerShell
 
-    $administrative unitObj = Get-AzureADAdministrativeUnit -Filter "displayname eq 'Test administrative unit 2'"
+    $administrative = Get-AzureADAdministrativeUnit -Filter "displayname eq 'Test administrative unit 2'"
     $AdminUser = Get-AzureADUser -ObjectId '[email protected]'
     $uaRoleMemberInfo = New-Object -TypeName Microsoft.Open.AzureAD.Model.RoleMemberInfo -Property @{ObjectId = $AdminUser.ObjectId}
     Add-AzureADScopedRoleMembership -RoleObjectId $UserAdminRole.ObjectId -ObjectId $administrative unitObj.ObjectId -RoleMemberInfo  $uaRoleMemberInfo