mpc83xx: add OF_FLAT_TREE bits to 83xx boards

add ft_pci_setup, OF_CPU, OF_SOC, OF_TBCLK, and
STDOUT_PATH configuration bits to mpc8349emds,
mpc8349itx, and mpc8360emds board code.

redo environment to use bootm with the fdtaddr
for booting ARCH=powerpc kernels by default,
and provide default fdtaddr values.
diff --git a/board/mpc8360emds/mpc8360emds.c b/board/mpc8360emds/mpc8360emds.c
index 5eadcd3..5bbaa5c 100644
--- a/board/mpc8360emds/mpc8360emds.c
+++ b/board/mpc8360emds/mpc8360emds.c
@@ -28,6 +28,9 @@
 #else
 #include <asm/mmu.h>
 #endif
+#if defined(CONFIG_OF_FLAT_TREE)
+#include <ft_build.h>
+#endif
 
 const qe_iop_conf_t qe_iop_conf_tab[] = {
 	/* GETH1 */
@@ -628,3 +631,23 @@
 	   "  - writes pattern with word access, generates error\n"
 	   "  - disables injects\n" "  - re-inits memory");
 #endif				/* if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) */
+
+#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+	u32 *p;
+	int len;
+
+#ifdef CONFIG_PCI
+	ft_pci_setup(blob, bd);
+#endif
+	ft_cpu_setup(blob, bd);
+
+	p = ft_get_prop(blob, "/memory/reg", &len);
+	if (p != NULL) {
+		*p++ = cpu_to_be32(bd->bi_memstart);
+		*p = cpu_to_be32(bd->bi_memsize);
+	}
+}
+#endif