docs/sp_SP: Add translation of process/submit-checklist

Translate Documentation/process/submit-checklist.rst into Spanish.

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Reviewed-by: Carlos Bilbao <carlos.bilbao@amd.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20231211023730.2026204-3-avadhut.naik@amd.com