Fix ULI RTC support on MPC8544 DS

The RTC on the M1575 ULI chipset requires a dummy read before
we are able to talk to the RTC.  We accomplish this by adding a
second memory region to the PHB the ULI is on and read from it.

The second region is added to maintain compatiabilty with Linux's
view of the PCI memory map.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/mpc8544ds/init.S b/board/freescale/mpc8544ds/init.S
index 900c368..68ccba7 100644
--- a/board/freescale/mpc8544ds/init.S
+++ b/board/freescale/mpc8544ds/init.S
@@ -237,6 +237,6 @@
 
 	/* contains both PCIE3 MEM & IO space */
 	.long	(CFG_PCIE3_MEM_PHYS>>12) & 0xfffff
-	.long	LAWAR_EN | LAWAR_TRGT_PCIE3 | (LAWAR_SIZE & LAWAR_SIZE_2M)
+	.long	LAWAR_EN | LAWAR_TRGT_PCIE3 | (LAWAR_SIZE & LAWAR_SIZE_4M)
 4:
 	entry_end