ARM: mvebu: fix build breaks from multi-platform conversion

Moving ARCH_MVEBU for multi-platform support caused several breakages in
recently added addr-map and pinctrl support for mvebu. This adds the
necessary selects and include paths to fix the build.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
index cbe5664..57f996b 100644
--- a/arch/arm/mach-mvebu/Makefile
+++ b/arch/arm/mach-mvebu/Makefile
@@ -1,4 +1,5 @@
-ccflags-$(ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
+	-I$(srctree)/arch/arm/plat-orion/include
 
 obj-y += system-controller.o
 obj-$(CONFIG_MACH_ARMADA_370_XP) += armada-370-xp.o irq-armada-370-xp.o addr-map.o