PCI: mt7621: Add sentinel to quirks table

Current driver is missing a sentinel in the struct soc_device_attribute
array, which causes an oops when assessed by the
soc_device_match(mt7621_pcie_quirks_match) call.

This was only exposed once the CONFIG_SOC_MT7621 mt7621 soc_dev_attr
was fixed to register the SOC as a device, in:

commit 7c18b64 ("mips: ralink: mt7621: do not use kzalloc too early")

Fix it by adding the required sentinel.

Link: https://lore.kernel.org/lkml/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Fixes: b483b4e ("staging: mt7621-pci: add quirks for 'E2' revision using 'soc_device_attribute'")
Signed-off-by: John Thomson <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Acked-by: Sergio Paracuellos <[email protected]>

Author: john-tho

drivers/pci/controller/pcie-mt7621.c

@@ -466,7 +466,8 @@ static int mt7621_pcie_register_host(struct pci_host_bridge *host)
 }
 
 static const struct soc_device_attribute mt7621_pcie_quirks_match[] = {
-	{ .soc_id = "mt7621", .revision = "E2" }
+	{ .soc_id = "mt7621", .revision = "E2" },
+	{ /* sentinel */ }
 };
 
 static int mt7621_pcie_probe(struct platform_device *pdev)