Add pds_fwctl to the driver and fwctl documentation pages.
Link: https://patch.msgid.link/r/20250320194412.67983-7-shannon.nelson@amd.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>