AVR32: Initialize ipaddr, loadaddr and bootfile at startup

I don't know why the relevant layers can't do this by itself, but this
is what ppc does.
Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>

lib_avr32/board.c

@@ -264,6 +264,7 @@ void board_init_r(gd_t *new_gd, ulong dest_addr)
 #ifndef CFG_ENV_IS_NOWHERE
 	extern char * env_name_spec;
 #endif
+	char *s;
 	cmd_tbl_t *cmdtp;
 	bd_t *bd;
 
@@ -336,11 +337,20 @@ void board_init_r(gd_t *new_gd, ulong dest_addr)
 	/* initialize environment */
 	env_relocate();
 
+	bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+
 	devices_init();
 	jumptable_init();
 	console_init_r();
 
+	s = getenv("loadaddr");
+	if (s)
+		load_addr = simple_strtoul(s, NULL, 16);
+
 #if defined(CONFIG_CMD_NET)
+	s = getenv("bootfile");
+	if (s)
+		copy_filename(BootFile, s, sizeof(BootFile));
 #if defined(CONFIG_NET_MULTI)
 	puts("Net:   ");
 #endif