ppc4xx: Move ppc4xx headers to powerpc include directory

This patch moves some ppc4xx related headers from the common include
directory (include/) to the powerpc specific one
(arch/powerpc/include/asm/). This way to common include directory is not
so cluttered with files.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/cray/L1/L1.c b/board/cray/L1/L1.c
index 33f2089..0f5f02c 100644
--- a/board/cray/L1/L1.c
+++ b/board/cray/L1/L1.c
@@ -23,7 +23,7 @@
 
 #include <common.h>
 #include <asm/processor.h>
-#include <4xx_i2c.h>
+#include <asm/ppc4xx-i2c.h>
 #include <command.h>
 #include <rtc.h>
 #include <post.h>
diff --git a/board/cray/L1/flash.c b/board/cray/L1/flash.c
index 36d186f..a3d893e 100644
--- a/board/cray/L1/flash.c
+++ b/board/cray/L1/flash.c
@@ -35,7 +35,7 @@
  */
 
 #include <common.h>
-#include <ppc4xx.h>
+#include <asm/ppc4xx.h>
 #include <asm/processor.h>
 
 /* The flash chip we use... */
diff --git a/board/cray/L1/init.S b/board/cray/L1/init.S
index e8dbb93..1662141 100644
--- a/board/cray/L1/init.S
+++ b/board/cray/L1/init.S
@@ -41,7 +41,7 @@
 /*	Bank 6 - not used */
 /*	Bank 7 - FPGA registers */
 /*-----------------------------------------------------------------------------#include <config.h> */
-#include <ppc4xx.h>
+#include <asm/ppc4xx.h>
 
 #define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/