module: Clean up parse_args() arguments
* Use the preferred `unsigned int` over plain `unsigned` for the `num`
parameter.
* Synchronize the parameter names in moduleparam.h with the ones used by
the implementation in params.c.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
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