Fix PCI I/O space mapping on Freescale MPC85x0ADS

The PCI I/O space mapping for Freescale MPC8540ADS board was broken by commit
52c7a68b8d587ebcf5a6b051b58b3d3ffa377ddc which failed to update the #define's
describing the local address window used for the PCI I/O space accesses -- fix
this and carry over the necessary changes into the MPC8560ADS code since the
PCI I/O space mapping was also broken for this board (by the earlier commit
087454609e47295443af793a282cddcd91a5f49c).  Add the comments clarifying how
the PCI I/O space must be mapped to all the MPC85xx board config. headers.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>

 board/mpc8540ads/init.S      |    4 ++--
 board/mpc8560ads/init.S      |    4 ++--
 include/configs/MPC8540ADS.h |    5 ++---
 include/configs/MPC8541CDS.h |    2 +-
 include/configs/MPC8548CDS.h |    2 +-
 include/configs/MPC8560ADS.h |    8 ++++----
 6 files changed, 12 insertions(+), 13 deletions(-)
diff --git a/board/mpc8540ads/init.S b/board/mpc8540ads/init.S
index 242cb9f..544fde9 100644
--- a/board/mpc8540ads/init.S
+++ b/board/mpc8540ads/init.S
@@ -260,8 +260,8 @@
 #define LAWBAR2 ((CFG_LBC_SDRAM_BASE>>12) & 0xfffff)
 #define LAWAR2	(LAWAR_EN | LAWAR_TRGT_IF_LBC | (LAWAR_SIZE & LAWAR_SIZE_256M))
 
-#define LAWBAR3 ((CFG_PCI1_IO_BASE>>12) & 0xfffff)
-#define LAWAR3	(LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_16M))
+#define LAWBAR3 ((CFG_PCI1_IO_PHYS>>12) & 0xfffff)
+#define LAWAR3	(LAWAR_EN | LAWAR_TRGT_IF_PCIX | (LAWAR_SIZE & LAWAR_SIZE_1M))
 
 /*
  * Rapid IO at 0xc000_0000 for 512 M