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/Makefile b/arch/arm/Makefile
index d3f470c..c133061 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -210,11 +210,11 @@
 plat-$(CONFIG_ARCH_EXYNOS)	+= samsung
 plat-$(CONFIG_ARCH_OMAP)	+= omap
 plat-$(CONFIG_ARCH_S3C64XX)	+= samsung
+plat-$(CONFIG_ARCH_S5PV210)	+= samsung
 plat-$(CONFIG_PLAT_IOP)		+= iop
 plat-$(CONFIG_PLAT_ORION)	+= orion
 plat-$(CONFIG_PLAT_PXA)		+= pxa
 plat-$(CONFIG_PLAT_S3C24XX)	+= samsung
-plat-$(CONFIG_PLAT_S5P)		+= samsung
 plat-$(CONFIG_PLAT_VERSATILE)	+= versatile
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
@@ -238,7 +238,7 @@
 endif
 
 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
-platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
+platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
 
 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
 ifeq ($(KBUILD_SRC),)