PCI: Rename _DSM constants to align with spec

Rename PCI-related _DSM constants to align them with the PCI Firmware Spec,
r3.2, sec 4.6.  No functional change intended.

Link: https://lore.kernel.org/r/20200526213905.2479381-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index a5910f9..707dd98 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -178,7 +178,7 @@ static int dsm_get_label(struct device *dev, char *buf,
 		return -1;
 
 	obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 0x2,
-				DEVICE_LABEL_DSM, NULL);
+				DSM_PCI_DEVICE_NAME, NULL);
 	if (!obj)
 		return -1;
 
@@ -218,7 +218,7 @@ static bool device_has_dsm(struct device *dev)
 		return false;
 
 	return !!acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2,
-				1 << DEVICE_LABEL_DSM);
+				1 << DSM_PCI_DEVICE_NAME);
 }
 
 static umode_t acpi_index_string_exist(struct kobject *kobj,