ppc4xx: Use correct io accessors for esd 405 boards

This patch replaces in/out8/16/32 macros by in/out_8/_be16/_be32
macros. Also volatile pointer references are replaced by the
new accessors.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/esd/apc405/apc405.c b/board/esd/apc405/apc405.c
index ac9bbb3..5a02155 100644
--- a/board/esd/apc405/apc405.c
+++ b/board/esd/apc405/apc405.c
@@ -93,7 +93,7 @@
 int board_revision(void)
 {
 	unsigned long cntrl0Reg;
-	volatile unsigned long value;
+	unsigned long value;
 
 	/*
 	 * Get version of APC405 board from GPIO's