[U-Boot] [PATCH v2 22/37] patman: Add functions to compress and decompress data

[sjg at google.com]

Add utility functions to compress and decompress using lz4 and lzma
algorithms. In the latter case these use the legacy lzma support favoured
by coreboot's CBFS.

No tests are provided as these functions will be tested by the CBFS
tests in a separate patch.

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

Changes in v2: None

 tools/binman/README   |  3 +-
 tools/patman/tools.py | 66 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 1 deletion(-)

Applied to u-boot-dm, thanks!