fwctl: Fix repeated device word in log message

Remove the repeated word "device" from a dev_warn() message.

Link: https://patch.msgid.link/r/20250408223300.24561-1-shannon.nelson@amd.com


Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>