PCI: Add ACS quirk for HXT SD4800

The design of HXT SD4800 ACS feature is the same as QCOM QDF2xxx.  Add an
ACS quirk for the SD4800.
Signed-off-by: Shunyong Yang <shunyong.yang@hxt-semitech.com>
[bhelgaas: split to separate patch]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
CC: Joey Zheng <yu.zheng@hxt-semitech.com>

drivers/pci/quirks.c

@@ -4519,6 +4519,8 @@ static const struct pci_dev_acs_enabled {
 	/* QCOM QDF2xxx root ports */
 	{ PCI_VENDOR_ID_QCOM, 0x0400, pci_quirk_qcom_rp_acs },
 	{ PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
+	/* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
+	{ PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
 	/* Intel PCH root ports */
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_spt_pch_acs },