idpf: add virtchnl functions to manage selected queues

Implement VC functions dedicated to enabling, disabling and configuring
not all but only selected queues.

Also, refactor the existing implementation to make the code more
modular. Introduce new generic functions for sending VC messages
consisting of chunks, in order to isolate the sending algorithm
and its implementation for specific VC messages.

Finally, rewrite the function for mapping queues to q_vectors using the
new modular approach to avoid copying the code that implements the VC
message sending algorithm.

Signed-off-by: Michal Kubiak <michal.kubiak@intel.com>
Co-developed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Tested-by: Ramu R <ramu.r@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>