83xx: Replace CONFIG_MPC83XX with CONFIG_MPC83xx

Use the standard lowercase "xx" capitalization that other Freescale
architectures use for CPU defines to prevent confusion and errors

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/include/configs/MPC8360ERDK.h b/include/configs/MPC8360ERDK.h
index 1387504..f584435 100644
--- a/include/configs/MPC8360ERDK.h
+++ b/include/configs/MPC8360ERDK.h
@@ -22,7 +22,7 @@
  */
 #define CONFIG_E300		1 /* E300 family */
 #define CONFIG_QE		1 /* Has QE */
-#define CONFIG_MPC83XX		1 /* MPC83XX family */
+#define CONFIG_MPC83xx		1 /* MPC83xx family */
 #define CONFIG_MPC8360		1 /* MPC8360 CPU specific */
 #define CONFIG_MPC8360ERDK	1 /* MPC8360ERDK board specific */