net/mlx5: HWS, Rearrange to prevent forward declaration

As a preparation for the following patch that will add support
for shrinking empty matchers, rearrange the code to prevent
forward declaration of functions.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250703185431.445571-9-mbloch@nvidia.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>