[PATCH 03/25] u_boot_pylib: Add more functions to gitutil

[Simon Glass]

Add functions for checking a branch, showing a commit, etc. to support
the new functionality.

Git version 2.34.1 ignores --stat if --quiet is given, so adjust the
args so that this performs as expected.

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

 tools/u_boot_pylib/gitutil.py | 96 +++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

Applied to sjg/master, thanks!