We have stubs for most OF interfaces even when CONFIG_OF is not set, so we
allow building of most controller drivers in that case for compile testing.
When CONFIG_OF is not set, "of_match_ptr(<match_table>)" compiles to NULL,
which leaves <match_table> unused, resulting in errors like this:
  $ make W=1
  drivers/pci/controller/pci-xgene.c:636:34: error: ‘xgene_pcie_match_table’ defined but not used [-Werror=unused-const-variable=]
Drop of_match_ptr() to avoid the unused variable warning.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
        .remove = __exit_p(ks_pcie_remove),
        .driver = {
                .name   = "keystone-pcie",
-               .of_match_table = of_match_ptr(ks_pcie_of_match),
+               .of_match_table = ks_pcie_of_match,
        },
 };
 builtin_platform_driver(ks_pcie_driver);
 
        .probe          = armada8k_pcie_probe,
        .driver = {
                .name   = "armada8k-pcie",
-               .of_match_table = of_match_ptr(armada8k_pcie_of_match),
+               .of_match_table = armada8k_pcie_of_match,
                .suppress_bind_attrs = true,
        },
 };
 
        .probe          = spear13xx_pcie_probe,
        .driver = {
                .name   = "spear-pcie",
-               .of_match_table = of_match_ptr(spear13xx_pcie_of_match),
+               .of_match_table = spear13xx_pcie_of_match,
                .suppress_bind_attrs = true,
        },
 };
 
 static struct platform_driver xgene_pcie_driver = {
        .driver = {
                .name = "xgene-pcie",
-               .of_match_table = of_match_ptr(xgene_pcie_match_table),
+               .of_match_table = xgene_pcie_match_table,
                .suppress_bind_attrs = true,
        },
        .probe = xgene_pcie_probe,