Revert "board: synquacer: developerbox: Don't set gd->env_addr to default_environment"

Without default setting of gd->env_addr, U-Boot will cause
a synchronous abort if the env-variables on the SPI flash is
broken or not saved corectly. Set gd->env_addr correctly.

This reverts commit 535870f3b0fb09ee9b2885409f05304111464643.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Marek BehĂșn <marek.behun@nic.cz>
diff --git a/board/socionext/developerbox/developerbox.c b/board/socionext/developerbox/developerbox.c
index 31b1349..9552bfc 100644
--- a/board/socionext/developerbox/developerbox.c
+++ b/board/socionext/developerbox/developerbox.c
@@ -82,6 +82,8 @@
 {
 	gd->bd->bi_boot_params = CONFIG_SYS_LOAD_ADDR + LOAD_OFFSET;
 
+	gd->env_addr = (ulong)&default_environment[0];
+
 	synquacer_setup_scbm_smmu();
 
 	return 0;