bnxt_en: Fix possible memory leak when hwrm_req_replace fails

bnxt_en: Fix possible memory leak when hwrm_req_replace fails

When hwrm_req_replace() fails, the driver is not invoking bnxt_req_drop()
which could cause a memory leak.

Fixes: bbf33d1d9805 ("bnxt_en: update all firmware calls to use the new APIs")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250104043849.3482067-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>