To support new devlink-rate API ice_sched_node struct needs to store
a number of additional parameters. This includes tx_max, tx_share,
tx_weight, and tx_priority.

Add new fields to ice_sched_node struct. Add new functions to configure
the hardware with new parameters. Introduce new xarray to identify
nodes uniquely.
Signed-off-by: NMichal Wilczynski <michal.wilczynski@intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>