bnxt_en: Cap the size of HWRM_PORT_PHY_QCFG forwarded response

[ Upstream commit 7d9df38c ]

Firmware interface 1.10.2.118 has increased the size of
HWRM_PORT_PHY_QCFG response beyond the maximum size that can be
forwarded.  When the VF's link state is not the default auto state,
the PF will need to forward the response back to the VF to indicate
the forced state.  This regression may cause the VF to fail to
initialize.

Fix it by capping the HWRM_PORT_PHY_QCFG response to the maximum
96 bytes.  The SPEEDS2_SUPPORTED flag needs to be cleared because the
new speeds2 fields are beyond the legacy structure.  Also modify
bnxt_hwrm_fwd_resp() to print a warning if the message size exceeds 96
bytes to make this failure more obvious.

Fixes: 84a911db

 ("bnxt_en: Update firmware interface to 1.10.2.118")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240612231736.57823-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>