PCI: Use unsigned int i in pcie_read_tlp_log()

Loop variable i counting from 0 upwards does not need to be signed so make
it unsigned int.

Link: https://lore.kernel.org/r/20250114170840.1633-6-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/pci/pcie/tlp.c

@@ -24,7 +24,8 @@
 int pcie_read_tlp_log(struct pci_dev *dev, int where,
 		      struct pcie_tlp_log *log)
 {
-	int i, ret;
+	unsigned int i;
+	int ret;
 
 	memset(log, 0, sizeof(*log));