[PATCH v2 30/38] binman: Add a bintool implementation for lz4

[Simon Glass]

Add a Bintool for this, which is used to compress and decompress data.
It supports the features needed by binman as well as installing via the
lz4 package.

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

(no changes since v1)

 tools/binman/btool/lz4.py | 140 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 tools/binman/btool/lz4.py

Applied to u-boot-dm, thanks!