[ARM] Fix ordering of machine class selection.

The machine class should be in alphabetical order.  Swap ordering
of the recently added TI and S3C2410 entries to return it to this
ordering.

arch/arm/Kconfig

@@ -135,9 +135,6 @@ config ARCH_SA1100
 config ARCH_SHARK
 	bool "Shark"
 
-config ARCH_OMAP
-	bool "TI OMAP"
-
 config ARCH_S3C2410
 	bool "Samsung S3C2410"
 	help
@@ -145,6 +142,9 @@ config ARCH_S3C2410
 	  BAST (http://www.simtec.co.uk/products/EB110ITX/), the IPAQ 1940 or
 	  the Samsung SMDK2410 development board (and derviatives).
 
+config ARCH_OMAP
+	bool "TI OMAP"
+
 endchoice
 
 source "arch/arm/mach-clps711x/Kconfig"