bnxt_en: Add devlink support for ENABLE_ROCE nvm parameter

Add set/show support for the ENABLE_ROCE NVM parameter to
enable/disable RoCE for a PF.

Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Co-developed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250310183129.3154117-4-michael.chan@broadcom.com


Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>