ARM: at91: at91sam9rlek: add hush parser to defconfig

HUSH parser will handle the variable easier. That will be helpful for
write a complicated U-Boot commands or varaibles.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
diff --git a/configs/at91sam9rlek_dataflash_defconfig b/configs/at91sam9rlek_dataflash_defconfig
index ee632d1..174bcc4 100644
--- a/configs/at91sam9rlek_dataflash_defconfig
+++ b/configs/at91sam9rlek_dataflash_defconfig
@@ -2,3 +2,4 @@
 CONFIG_ARM=y
 CONFIG_ARCH_AT91=y
 CONFIG_TARGET_AT91SAM9RLEK=y
+CONFIG_HUSH_PARSER=y