OMAP3: Enable command line editing for omap3_beagle

Signed-off-by: John Rigby <john.rigby@linaro.org>
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index 07ce687..d46ddc2 100644
--- a/include/configs/omap3_beagle.h
+++ b/include/configs/omap3_beagle.h
@@ -304,6 +304,7 @@
 /*
  * Miscellaneous configurable options
  */
+#define CONFIG_CMDLINE_EDITING
 #define CONFIG_SYS_LONGHELP		/* undef to save memory */
 #define CONFIG_SYS_HUSH_PARSER		/* use "hush" command parser */
 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "