bnxt_en: Fix PTP firmware timeout parameter

Use the correct tmo_us microsecond parameter for the PTP firmware
timeout parameter.

Fixes: 7de3c221

 ("bnxt_en: Add a timeout parameter to bnxt_hwrm_port_ts_query()")
Reported-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240404195500.171071-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>