ARM: S5PV210: Enable multi-platform build support

This makes it possible to enable the s5pv210 platform as part of a
multiplatform kernel. Also redundant Kconfig options are removed.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 5308225..7dc2d0e 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -5,6 +5,8 @@
 #
 # Licensed under GPLv2
 
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include
+
 obj-y				:=
 obj-m				:=
 obj-n				:=
@@ -16,7 +18,4 @@
 
 # machine support
 
-obj-$(CONFIG_MACH_S5PV210_DT)	+= s5pv210.o
-# device support
-
-obj-y					+= setup-i2c0.o
+obj-y				+= s5pv210.o