PCI: dwc: layerscape: Constify driver data

Constify driver data since they do not get changed at runtime.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/controller/dwc/pci-layerscape.c

@@ -222,12 +222,12 @@ static const struct dw_pcie_ops dw_ls_pcie_ops = {
 	.link_up = ls_pcie_link_up,
 };
 
-static struct ls_pcie_drvdata ls1021_drvdata = {
+static const struct ls_pcie_drvdata ls1021_drvdata = {
 	.ops = &ls1021_pcie_host_ops,
 	.dw_pcie_ops = &dw_ls1021_pcie_ops,
 };
 
-static struct ls_pcie_drvdata ls1043_drvdata = {
+static const struct ls_pcie_drvdata ls1043_drvdata = {
 	.lut_offset = 0x10000,
 	.ltssm_shift = 24,
 	.lut_dbg = 0x7fc,
@@ -235,7 +235,7 @@ static struct ls_pcie_drvdata ls1043_drvdata = {
 	.dw_pcie_ops = &dw_ls_pcie_ops,
 };
 
-static struct ls_pcie_drvdata ls1046_drvdata = {
+static const struct ls_pcie_drvdata ls1046_drvdata = {
 	.lut_offset = 0x80000,
 	.ltssm_shift = 24,
 	.lut_dbg = 0x407fc,
@@ -243,7 +243,7 @@ static struct ls_pcie_drvdata ls1046_drvdata = {
 	.dw_pcie_ops = &dw_ls_pcie_ops,
 };
 
-static struct ls_pcie_drvdata ls2080_drvdata = {
+static const struct ls_pcie_drvdata ls2080_drvdata = {
 	.lut_offset = 0x80000,
 	.ltssm_shift = 0,
 	.lut_dbg = 0x7fc,
@@ -251,7 +251,7 @@ static struct ls_pcie_drvdata ls2080_drvdata = {
 	.dw_pcie_ops = &dw_ls_pcie_ops,
 };
 
-static struct ls_pcie_drvdata ls2088_drvdata = {
+static const struct ls_pcie_drvdata ls2088_drvdata = {
 	.lut_offset = 0x80000,
 	.ltssm_shift = 0,
 	.lut_dbg = 0x407fc,