module: Reformat struct for code style

Using commas to declare struct members makes adding new members to this
struct not as nice with patch management.

Test results linux-modules-kpd succeed [0].

Signed-off-by: Matthew Maurer <mmaurer@google.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
[mcgrof: add automated test results from kdevops using KPD ]
Link: https://github.com/linux-kdevops/linux-modules-kpd/actions/runs/11420095343

 # [0]
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>