PCI: Add ACS quirk for Broadcom BCM5750x NICs

mainline inclusion
from master
commit 	afd306a6
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5V2IE
CVE: NA

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The Broadcom BCM5750x NICs may be multi-function devices.  They do not
advertise ACS capability. Peer-to-peer transactions are not possible
between the individual functions, so it is safe to treat them as fully
isolated.

Add an ACS quirk for these devices so the functions can be in independent
IOMMU groups and attached individually to userspace applications using
VFIO.

Link: https://lore.kernel.org/r/1654796507-28610-1-git-send-email-michael.chan@broadcom.com


Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Xibo.Wang <wangxb12@chinatelecom.cn>