Split out the code which prepares the cedit for use, so we can call it
from a test.
Add a log category while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Before adding more functions to this interface, create a new header for
the configuration editor.
Fix up the expo header guard while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a new 'cedit' command which allows editing configuration using an
expo. The configuration items appear as menus on the display.
This is extremely basic, only supporting menus and not providing any way
to load or save the configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>