net/mlx5: Expose HCA capability bits for mkey max page size

Expose the HCA capability for maximal page size that can be configured
for an mkey. Used for enforcing capabilities when working with highly
contiguous memory and using large page sizes.

Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://patch.msgid.link/3e4d3fda37934430f65f72601519e22bf396fd05.1751979184.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: mikijoy

include/linux/mlx5/mlx5_ifc.h

@@ -2171,7 +2171,9 @@ struct mlx5_ifc_cmd_hca_cap_2_bits {
 	u8	   min_mkey_log_entity_size_fixed_buffer[0x5];
 	u8	   ec_vf_vport_base[0x10];
 
-	u8	   reserved_at_3a0[0xa];
+	u8	   reserved_at_3a0[0x2];
+	u8	   max_mkey_log_entity_size_fixed_buffer[0x6];
+	u8	   reserved_at_3a8[0x2];
 	u8	   max_mkey_log_entity_size_mtt[0x6];
 	u8	   max_rqt_vhca_id[0x10];