ide: Remove spurious second include of io.h

Removed the second include, with all the #ifdef around as suggested by Wolfgang.

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index ead7e10..cac99d5 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -52,10 +52,6 @@
 # include <status_led.h>
 #endif
 
-#ifndef __PPC__
-#include <asm/io.h>
-#endif
-
 #ifdef CONFIG_IDE_8xx_DIRECT
 DECLARE_GLOBAL_DATA_PTR;
 #endif