[PATCH v2 13/28] patman: Support erasing a previously unfinished text line

[sjg at google.com]

When printing progress it is useful to print a message and leave the
cursor at the end of the line until the operation is finished. When it is
finished, the line needs to be erased so a new line can start in its place.

Add a function to handle clearing a line previously written by
terminal.Print()

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

Changes in v2: None

 tools/patman/patman.py   |  2 +-
 tools/patman/terminal.py | 47 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)

Applied to u-boot-dm, thanks!