Convert CONFIG_CPU_PXA27X to Kconfig

This converts the following to Kconfig:
   CONFIG_CPU_PXA27X

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 26c96ed..b828b8d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -311,6 +311,10 @@
 	select SYS_CACHE_SHIFT_5
 	imply SYS_ARM_MMU
 
+config CPU_PXA27X
+	bool
+	select CPU_PXA
+
 config CPU_SA1100
 	bool
 	select SYS_CACHE_SHIFT_5
@@ -1767,7 +1771,7 @@
 
 config TARGET_COLIBRI_PXA270
 	bool "Support colibri_pxa270"
-	select CPU_PXA
+	select CPU_PXA27X
 	select GPIO_EXTRA_HEADER
 
 config ARCH_UNIPHIER
diff --git a/include/configs/colibri_pxa270.h b/include/configs/colibri_pxa270.h
index 22eab77..0be7f5a 100644
--- a/include/configs/colibri_pxa270.h
+++ b/include/configs/colibri_pxa270.h
@@ -12,7 +12,6 @@
 /*
  * High Level Board Configuration Options
  */
-#define	CONFIG_CPU_PXA27X		1	/* Marvell PXA270 CPU */
 /* Avoid overwriting factory configuration block */
 #define CONFIG_BOARD_SIZE_LIMIT		0x40000
 
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 5353e84..0587bf3 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -162,7 +162,6 @@
 CONFIG_CPU_MONAHANS
 CONFIG_CPU_PXA25X
 CONFIG_CPU_PXA26X
-CONFIG_CPU_PXA27X
 CONFIG_CPU_PXA300
 CONFIG_CPU_SH7751
 CONFIG_CPU_TYPE_R