[patch] Align IoT and SLS mustgather with function parameter change

[stonepd]

There is a bug in the SLS and IoT mustgather -

[must-gather] Error from server (BadRequest): Unable to find "/v1, Resource=pods" that match label selector "ibm-iot-operator=/workspace/mustgather/fvtnocpd-fvt-847/20230928-080426", field selector "": unable to parse requirement: values[0][ibm-iot-operator]: Invalid value: "/workspace/mustgather/fvtnocpd-fvt-847/20230928-080426": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')
[must-gather] error executing jsonpath "{.items[0].[metadata.name](http://metadata.name/)}": Error executing template: array index out of bounds: index 0, length 0. Printing more information for debugging the template:
[must-gather] 	template was:
[must-gather] 		{.items[0].[metadata.name](http://metadata.name/)}
[must-gather] 	object given to jsonpath engine was:
[must-gather] 		map[string]interface {}{"apiVersion":"v1", "items":[]interface {}{}, "kind":"List", "metadata":map[string]interface {}{"resourceVersion":"", "selfLink":""}}
...
etc
...

Delivery of #462 crossed over with #453 which changed the function parameters of mg-collect-reconcile-logs, so we need to pass in the label name control-plane in most cases.