Add VNC port range check (#34466)

This adds a check to ensure that both start and end of vnc range
is specified.

lib/ansible/modules/remote_management/manageiq/manageiq_provider.py

@@ -672,6 +672,9 @@ def main():
         argument_spec=argument_spec,
         required_if=[
             ('state', 'present', ['provider'])],
+        required_together=[
+            ['host_default_vnc_port_start', 'host_default_vnc_port_end']
+        ],
     )
 
     name = module.params['name']