PXA: Rename CONFIG_PXA2[57]X to CONFIG_CPU_PXA2[57]X

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
diff --git a/include/configs/zipitz2.h b/include/configs/zipitz2.h
index 9505007..26204af 100644
--- a/include/configs/zipitz2.h
+++ b/include/configs/zipitz2.h
@@ -25,7 +25,7 @@
 /*
  * High Level Board Configuration Options
  */
-#define	CONFIG_PXA27X		1	/* Marvell PXA270 CPU */
+#define	CONFIG_CPU_PXA27X		1	/* Marvell PXA270 CPU */
 #define	CONFIG_ZIPITZ2		1	/* Zipit Z2 board */
 #define	CONFIG_SYS_TEXT_BASE	0x0