uboot-phytec

patman: Add a library to handle logging and progress

When tools want to display information of varying levels of importance, it
helps to provide the user with control over the verbosity of these messages.
Progress messages work best if they are displayed and then removed from the
display when no-longer relevant.

Add a new tout library (terminal out) to handle these tasks.

Signed-off-by: Simon Glass <sjg@chromium.org>