[libata] constify PCI ID table in several drivers
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index 78b4ff1..f557f17 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -190,7 +190,7 @@
 	},
 };
 
-static struct pci_device_id adma_ata_pci_tbl[] = {
+static const struct pci_device_id adma_ata_pci_tbl[] = {
 	{ PCI_VENDOR_ID_PDC, 0x1841, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 	  board_1841_idx },