[MIPS] Rename Alchemy processor configs into CONFIG_SOC_*

CONFIG_SOC_AU1X00

  Common Alchemy Au1x00 stuff. All Alchemy processor based machines
  need to have this config as a system type specifier.

CONFIG_SOC_AU1000, CONFIG_SOC_AU1100, CONFIG_SOC_AU1200,
CONFIG_SOC_AU1500, CONFIG_SOC_AU1550

  Machine type specifiers. Each port should have one of aboves.

Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
diff --git a/cpu/mips/au1x00_eth.c b/cpu/mips/au1x00_eth.c
index d70c5fe..aeb9662 100644
--- a/cpu/mips/au1x00_eth.c
+++ b/cpu/mips/au1x00_eth.c
@@ -23,7 +23,7 @@
  */
 #include <config.h>
 
-#ifdef CONFIG_AU1X00
+#ifdef CONFIG_SOC_AU1X00
 
 #if defined(CFG_DISCOVER_PHY)
 #error "PHY not supported yet"
@@ -33,20 +33,20 @@
 
 /* I assume ethernet behaves like au1000 */
 
-#ifdef CONFIG_AU1000
+#ifdef CONFIG_SOC_AU1000
 /* Base address differ between cpu:s */
 #define ETH0_BASE AU1000_ETH0_BASE
 #define MAC0_ENABLE AU1000_MAC0_ENABLE
 #else
-#ifdef CONFIG_AU1100
+#ifdef CONFIG_SOC_AU1100
 #define ETH0_BASE AU1100_ETH0_BASE
 #define MAC0_ENABLE AU1100_MAC0_ENABLE
 #else
-#ifdef CONFIG_AU1500
+#ifdef CONFIG_SOC_AU1500
 #define ETH0_BASE AU1500_ETH0_BASE
 #define MAC0_ENABLE AU1500_MAC0_ENABLE
 #else
-#ifdef CONFIG_AU1550
+#ifdef CONFIG_SOC_AU1550
 #define ETH0_BASE AU1550_ETH0_BASE
 #define MAC0_ENABLE AU1550_MAC0_ENABLE
 #else
@@ -308,4 +308,4 @@
 	return 1;
 }
 
-#endif /* CONFIG_AU1X00 */
+#endif /* CONFIG_SOC_AU1X00 */
diff --git a/cpu/mips/au1x00_serial.c b/cpu/mips/au1x00_serial.c
index 42c668e..ec10ac0 100644
--- a/cpu/mips/au1x00_serial.c
+++ b/cpu/mips/au1x00_serial.c
@@ -27,7 +27,7 @@
 
 #include <config.h>
 
-#ifdef CONFIG_AU1X00
+#ifdef CONFIG_SOC_AU1X00
 
 #include <common.h>
 #include <asm/au1x00.h>
@@ -132,4 +132,4 @@
 	}
 	return 0;
 }
-#endif /* CONFIG_SERIAL_AU1X00 */
+#endif /* CONFIG_SOC_AU1X00 */
diff --git a/cpu/mips/au1x00_usb_ohci.c b/cpu/mips/au1x00_usb_ohci.c
index dbf72dc..e03b125 100644
--- a/cpu/mips/au1x00_usb_ohci.c
+++ b/cpu/mips/au1x00_usb_ohci.c
@@ -35,7 +35,7 @@
 
 #include <config.h>
 
-#if defined(CONFIG_AU1X00) && defined(CONFIG_USB_OHCI)
+#if defined(CONFIG_SOC_AU1X00) && defined(CONFIG_USB_OHCI)
 
 /* #include <pci.h> no PCI on the AU1x00 */