Use standard LAWAR_TRGT_IF_* defines for LAW setup on 85xx

We already had defines for LAWAR_TRGT_IF_* that we should use
rather than creating new ones.  Also, added some missing defines for
PCIE targets.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h
index b3cfa9b..3d40332 100644
--- a/include/asm-ppc/mmu.h
+++ b/include/asm-ppc/mmu.h
@@ -413,7 +413,9 @@
 #define LAWAR_TRGT_IF_PCI1	0x00000000
 #define LAWAR_TRGT_IF_PCIX	0x00000000
 #define LAWAR_TRGT_IF_PCI2	0x00100000
-#define LAWAR_TRGT_IF_PEX	0x00200000
+#define LAWAR_TRGT_IF_PCIE1	0x00200000
+#define LAWAR_TRGT_IF_PCIE2	0x00100000
+#define LAWAR_TRGT_IF_PCIE3	0x00300000
 #define LAWAR_TRGT_IF_LBC	0x00400000
 #define LAWAR_TRGT_IF_CCSR	0x00800000
 #define LAWAR_TRGT_IF_DDR_INTERLEAVED 0x00B00000