ppc4xx: 4xx_pcie: Change CFG_PCIE_MEMSIZE to 128MB on Yucca & Katmai

128MB seems to be the smallest possible value for the memory size
for on PCIe port. With this change now the BAR's of the PCIe cards
are accessible under U-Boot.

One big note: This only works for PCIe port 0 & 1. For port 2 this
currently doesn't work, since the base address is now 0xc0000000
(0xb0000000 + 2 * 0x08000000), and this is already occupied by
CFG_PCIE0_CFGBASE. But solving this issue for port 2 would mean
to change the base addresses completely and this change would have
too much impact right now.

This patch adds debug output to the 4xx pcie driver too.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/configs/katmai.h b/include/configs/katmai.h
index 7908e5a..03c3cb3 100644
--- a/include/configs/katmai.h
+++ b/include/configs/katmai.h
@@ -62,7 +62,7 @@
 #define CFG_PCI_TARGBASE	CFG_PCI_MEMBASE
 
 #define CFG_PCIE_MEMBASE	0xb0000000	/* mapped PCIe memory	*/
-#define CFG_PCIE_MEMSIZE	0x01000000
+#define CFG_PCIE_MEMSIZE	0x08000000	/* smallest incr for PCIe port */
 #define CFG_PCIE_BASE		0xe0000000	/* PCIe UTL regs */
 
 #define CFG_PCIE0_CFGBASE	0xc0000000