pci: apple: Enable CONFIG_SYS_PCI_64BIT

The Apple hardware supports 64-bit prefetchable memory windows so
enable CONFIG_SYS_PCI_64BIT. This fixes BAR assignments for the
Broadcom Ethernet controller used in some of the desktop machines.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index a0bf44d..74e514a 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -121,6 +121,7 @@
 	bool "Enable Apple PCIe driver"
 	depends on ARCH_APPLE
 	imply PCI_INIT_R
+	select SYS_PCI_64BIT
 	default y
 	help
 	  Say Y here if you want to enable PCIe controller support on