ppc: qemu: Fix CONFIG_SYS_PCI_MAP_END

CONFIG_SYS_PCI_MAP_END currently points to 0xe8000000, which means
the upper end of the virtual address mapped to PCI bus address ends
at 0xe8000000. But this is wrong as the CCSBAR was already mapped
at 0xe0000000 with a 1 MiB size.

Fixes: fa08d395 ("PPC 85xx: Add qemu-ppce500 machine")
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPriyanka Jain <priyanka.jain@nxp.com>

include/configs/qemu-ppce500.h

@@ -35,7 +35,7 @@ extern unsigned long long get_phys_ccsrbar_addr_early(void);
 
 /* Virtual address range for PCI region maps */
 #define CONFIG_SYS_PCI_MAP_START	0x80000000
-#define CONFIG_SYS_PCI_MAP_END		0xe8000000
+#define CONFIG_SYS_PCI_MAP_END		0xe0000000
 
 /* Virtual address to a temporary map if we need it (max 128MB) */
 #define CONFIG_SYS_TMPVIRT		0xe8000000