[MIPS] Update <asm/addrspace.h> header

- Fix traditional KSEG names
- Replace PHYSADDR with CPHYSADDR

Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
diff --git a/cpu/mips/cache.S b/cpu/mips/cache.S
index 7966079..ee5d411 100644
--- a/cpu/mips/cache.S
+++ b/cpu/mips/cache.S
@@ -40,7 +40,7 @@
  */
 #define MIPS_MAX_CACHE_SIZE	0x10000
 
-#define INDEX_BASE	KSEG0
+#define INDEX_BASE	CKSEG0
 
 	.macro	cache_op op addr
 	.set	push
@@ -218,7 +218,7 @@
 	/*
 	 * Now clear that much memory starting from zero.
 	 */
-	PTR_LI		a0, KSEG1
+	PTR_LI		a0, CKSEG1
 	PTR_ADDU	a1, a0, v0
 2:	PTR_ADDIU	a0, 64
 	f_fill64	a0, -64, zero
@@ -318,7 +318,7 @@
 	.globl	mips_cache_lock
 	.ent	mips_cache_lock
 mips_cache_lock:
-	li	a1, K0BASE - CACHE_LOCK_SIZE
+	li	a1, CKSEG0 - CACHE_LOCK_SIZE
 	addu	a0, a1
 	li	a2, CACHE_LOCK_SIZE
 	li	a3, CFG_CACHELINE_SIZE