85xx: Use proper defines for PCI addresses

We should be using the _MEM_PHYS for LAW and TLB setup and not _MEM_BASE.
While _MEM_BASE & _MEM_PHYS are normally the same, _MEM_BASE should only
be used for configuring the PCI ATMU.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/mpc8540eval/law.c b/board/mpc8540eval/law.c
index 4d603f0..273ec5c 100644
--- a/board/mpc8540eval/law.c
+++ b/board/mpc8540eval/law.c
@@ -45,7 +45,7 @@
 #ifndef CONFIG_SPD_EEPROM
 	SET_LAW_ENTRY(1, CFG_DDR_SDRAM_BASE, LAW_SIZE_128M, LAW_TRGT_IF_DDR),
 #endif
-	SET_LAW_ENTRY(2, CFG_PCI_MEM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_PCI),
+	SET_LAW_ENTRY(2, CFG_PCI_MEM_PHYS, LAW_SIZE_256M, LAW_TRGT_IF_PCI),
 #ifndef CONFIG_RAM_AS_FLASH
 	SET_LAW_ENTRY(3, CFG_LBC_SDRAM_BASE, LAW_SIZE_128M, LAW_TRGT_IF_LBC),
 #endif