PCI: mvebu: Convert to PCI emulated bridge config space

Convert the pci-mvebu driver to use the pci-bridge-emul logic, that
helps emulating a root port PCI bridge configuration space.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/controller/Kconfig

@@ -9,6 +9,7 @@ config PCI_MVEBU
 	depends on MVEBU_MBUS
 	depends on ARM
 	depends on OF
+	select PCI_BRIDGE_EMUL
 
 config PCI_AARDVARK
 	bool "Aardvark PCIe controller"