PCI/P2PDMA: Add AMD Zen Raven and Renoir Root Ports to whitelist

According to the hardware architect, pre-Zen parts support p2p writes and
Zen parts support both p2p reads and writes.

Add entries for Zen parts Raven (0x15d0) and Renoir (0x1630).

Link: https://lore.kernel.org/r/20200406194201.846411-1-alexander.deucher@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>

drivers/pci/p2pdma.c

@@ -282,6 +282,8 @@ static const struct pci_p2pdma_whitelist_entry {
 } pci_p2pdma_whitelist[] = {
 	/* AMD ZEN */
 	{PCI_VENDOR_ID_AMD,	0x1450,	0},
+	{PCI_VENDOR_ID_AMD,	0x15d0,	0},
+	{PCI_VENDOR_ID_AMD,	0x1630,	0},
 
 	/* Intel Xeon E5/Core i7 */
 	{PCI_VENDOR_ID_INTEL,	0x3c00, REQ_SAME_HOST_BRIDGE},