integratorap: support the hush shell

Give us some kind of sane shell environment so the bootloader can
be used.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

include/configs/integratorap.h

@@ -94,7 +94,9 @@
  * Miscellaneous configurable options
  */
 #define CONFIG_SYS_LONGHELP	/* undef to save memory	    */
+#define CONFIG_SYS_HUSH_PARSER
 #define CONFIG_SYS_PROMPT	"Integrator-AP # "	/* Monitor Command Prompt   */
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"# "
 #define CONFIG_SYS_CBSIZE	256		/* Console I/O Buffer Size  */
 /* Print Buffer Size */
 #define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)