compress/mlx5: fix asserts

compress/mlx5: fix asserts

When ASSERT is enabled for compilation, the 2 usages of assert mechanism
in the driver are failed due to typos.

Fix the typos.

Fixes: f8c97babc9f4 ("compress/mlx5: add data-path functions")
Fixes: 37862dafcbed ("compress/mlx5: support 32-bit systems")
Reported-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Signed-off-by: Matan Azrad <matan@nvidia.com>
Tested-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>