x86: Rename include/asm/ic to include/asm/arch-sc520

Also include some trivial related cleanups

board/eNET/eNET.c

@@ -23,7 +23,7 @@
 
 #include <common.h>
 #include <asm/io.h>
-#include <asm/ic/sc520.h>
+#include <asm/arch/sc520.h>
 #include <net.h>
 #include <netdev.h>
 

board/eNET/eNET_pci.c

@@ -27,7 +27,7 @@
 #include <common.h>
 #include <pci.h>
 #include <asm/pci.h>
-#include <asm/ic/pci.h>
+#include <asm/arch/pci.h>
 
 static void pci_enet_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
 {

board/eNET/eNET_start16.S

@@ -27,11 +27,9 @@
  * that is used by U-boot to its final destination.
  */
 
-/* #include <asm/ic/sc520_defs.h> */
-
 #include "config.h"
 #include "hardware.h"
-#include <asm/ic/sc520.h>
+#include <asm/arch/sc520.h>
 
 .text
 .section .start16, "ax"