arm: Correct build with CONFIG_SYS_HUSH_PARSER set

FLAG_PARSE_SEMICOLON is not defined without hush.h, so include that.

Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
diff --git a/cpu/arm926ejs/kirkwood/cpu.c b/cpu/arm926ejs/kirkwood/cpu.c
index bab5faf..6fc3902 100644
--- a/cpu/arm926ejs/kirkwood/cpu.c
+++ b/cpu/arm926ejs/kirkwood/cpu.c
@@ -27,6 +27,7 @@
 #include <asm/cache.h>
 #include <u-boot/md5.h>
 #include <asm/arch/kirkwood.h>
+#include <hush.h>
 
 #define BUFLEN	16