ARM: S3C64XX: Eliminate plat-s3c64xx

Now we've move the support out of plat-s3c64xx for everything, eliminate
the platform directory arch/arm/plat-s3c64xx and remove it from the ARM
build configuration.

Note, PLAT_S3C64XX is kept around for the moment until the drivers that
depend on it can be updated, so it is moved to the mach-s3c64xx Kconfig.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

arch/arm/Makefile

@@ -183,7 +183,7 @@ plat-$(CONFIG_PLAT_NOMADIK)	:= nomadik
 plat-$(CONFIG_PLAT_ORION)	:= orion
 plat-$(CONFIG_PLAT_PXA)		:= pxa
 plat-$(CONFIG_PLAT_S3C24XX)	:= s3c24xx s3c samsung
-plat-$(CONFIG_ARCH_S3C64XX)	:= s3c64xx s3c samsung
+plat-$(CONFIG_ARCH_S3C64XX)	:= s3c samsung
 plat-$(CONFIG_PLAT_S5PC1XX)	:= s5pc1xx s3c samsung
 plat-$(CONFIG_PLAT_S5P)		:= s5p samsung s3c
 plat-$(CONFIG_ARCH_STMP3XXX)	:= stmp3xxx

arch/arm/mach-s3c64xx/Kconfig

@@ -3,6 +3,15 @@
 #
 # Licensed under GPLv2
 
+# temporary until we can eliminate all drivers using it.
+config PLAT_S3C64XX
+	bool
+	depends on ARCH_S3C64XX
+	default y
+	help
+	  Base platform code for any Samsung S3C64XX device
+
+
 # Configuration options for the S3C6410 CPU
 
 config CPU_S3C6400