ARM: prevent misaligned array inits

Under option -munaligned-access, gcc can perform local char
or 16-bit array initializations using misaligned native
accesses which will throw a data abort exception. Fix files
where these array initializations were unneeded, and for
files known to contain such initializations, enforce gcc
option -mno-unaligned-access.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
[trini: Switch to usign call cc-option for -mno-unaligned-access as
Albert had done previously as that's really correct]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/common/cmd_dfu.c b/common/cmd_dfu.c
index 62fb890..01d6b3a 100644
--- a/common/cmd_dfu.c
+++ b/common/cmd_dfu.c
@@ -30,7 +30,7 @@
 static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	const char *str_env;
-	char s[] = "dfu";
+	char *s = "dfu";
 	char *env_bkp;
 	int ret;