net/mlx5: Add missing masks and QoS bit masks for scheduling elements

Add the missing masks for supported element types and Transmit
Scheduling Arbiter (TSAR) types in scheduling elements.

Also, add the corresponding bit masks for these types in the QoS
capabilities of a NIC scheduler.

Fixes: 214baf22 ("net/mlx5e: Support HTB offload")
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>