[ARM] Orion: PCI support

This patch adds support for PCI and PCI-E controllers in the
Orion, Orion-NAS and Orion2.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0362391..37aa3c6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -336,6 +336,7 @@
 config ARCH_ORION
 	bool "Marvell Orion"
 	depends on MMU
+	select PCI
 	help
 	  Support for Marvell Orion System on Chip family.