[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/include/asm-mips/au1x00.h b/include/asm-mips/au1x00.h
index 6a33197..2a948e8 100644
--- a/include/asm-mips/au1x00.h
+++ b/include/asm-mips/au1x00.h
@@ -137,7 +137,7 @@
 #define CP0_DEBUG		$23
 
 /* SDRAM Controller */
-#ifdef CONFIG_AU1550
+#ifdef CONFIG_SOC_AU1550
 
 #define MEM_SDMODE0                0xB4000800
 #define MEM_SDMODE1                0xB4000808
@@ -156,7 +156,7 @@
 #define MEM_SDWRMD1                0xB4000888
 #define MEM_SDWRMD2                0xB4000890
 
-#else /* CONFIG_AU1550 */
+#else /* CONFIG_SOC_AU1550 */
 
 #define MEM_SDMODE0                0xB4000000
 #define MEM_SDMODE1                0xB4000004
@@ -174,7 +174,7 @@
 #define MEM_SDWRMD1                0xB4000028
 #define MEM_SDWRMD2                0xB400002C
 
-#endif /* CONFIG_AU1550 */
+#endif /* CONFIG_SOC_AU1550 */
 
 #define MEM_SDSLEEP                0xB4000030
 #define MEM_SDSMCKE                0xB4000034