x86: edison: Enable command line editing

Enable command line editing, because it is extremely convenient.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
1 file changed