PCI: artpec: Add Axis ARTPEC-6 PCIe controller driver

The Axis ARTPEC-6 SoC integrates a PCIe controller from Synopsys.  Add a
new driver that provides the small glue needed to use the existing
DesignWare driver to make it work on the Axis ARTPEC-6 SoC.

[bhelgaas: return errors directly without gotos, fold in section mismatch
fix]
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index ed42cb6..d26687f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8823,6 +8823,15 @@
 F:	Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
 F:	drivers/pci/host/pci-xgene-msi.c
 
+PCIE DRIVER FOR AXIS ARTPEC
+M:	Niklas Cassel <niklas.cassel@axis.com>
+M:	Jesper Nilsson <jesper.nilsson@axis.com>
+L:	linux-arm-kernel@axis.com
+L:	linux-pci@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/pci/axis,artpec*
+F:	drivers/pci/host/*artpec*
+
 PCIE DRIVER FOR HISILICON
 M:	Zhou Wang <wangzhou1@hisilicon.com>
 M:	Gabriele Paoloni <gabriele.paoloni@huawei.com>