net/mlx5: Fix broken hca cap offset

The cited commit broke the offsets of hca cap struct, fix it.
While at it, cleanup a white space introduced by the same commit.

Fixes: b169e64a ("net/mlx5: Geneve, Add flow table capabilities for Geneve decap with TLV options")
Reported-by: Qian Cai <cai@lca.pw>
Cc: Yevgeny Kliteynik <kliteyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>