bnxt_en: Set bp->max_tpa according to what the FW supports

bnxt_en: Set bp->max_tpa according to what the FW supports

Fix the logic to set bp->max_tpa no higher than what the FW supports.
On P5 chips, some older FW sets max_tpa very low so we override it to
prevent performance regressions with the older FW.

Fixes: 79632e9ba386 ("bnxt_en: Expand bnxt_tpa_info struct to support 57500 chips.")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Colin Winegarden <colin.winegarden@broadcom.com>
Reviewed-by: Rukhsana Ansari <rukhsana.ansari@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20260504083611.1383776-3-pavan.chebbi@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>