omap: Make omap specific features appear under Kconfig menu

This will make Kconfig look nicer for selecting omap processor type

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index b18d7c2..c911cdb 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -1,3 +1,7 @@
+if ARCH_OMAP1
+
+menu "TI OMAP1 specific features"
+
 comment "OMAP Core Type"
 	depends on ARCH_OMAP1
 
@@ -237,3 +241,6 @@
 	help
           Enable 30MHz clock for OMAP CPU. If unsure, say N.
 
+endmenu
+
+endif