mvpp2: take care of xdp_features when reconfiguring queues

XDP is supported only if enough queues are present, so when reconfiguring
the queues set xdp_features accordingly.

Fixes: 66c0e13a

 ("drivers: net: turn on XDP features")
Suggested-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Matteo Croce <teknoraver@meta.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>