net/mlx5: Use ida_alloc_range() instead of ida_simple_alloc()

ida_simple_alloc() and remove functions are deprecated.
Related change:
commit 3264ceec ("lib/idr.c: document that ida_simple_{get,remove}() are deprecated")

Signed-off-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>