[U-Boot] [PATCH v2 16/31] binman: Allow device-tree entries to be compressed

[sjg at google.com]

At present the logic skips the blob class' handling of compression, so
this is not supported with device tree entries. Fix this.

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

Changes in v2:
- Update test to use _DoReadFileRealDtb() helper

 tools/binman/etype/blob.py             | 25 +++++++++++++++++--------
 tools/binman/etype/blob_dtb.py         |  8 ++++----
 tools/binman/ftest.py                  | 18 ++++++++++++++++++
 tools/binman/test/124_compress_dtb.dts | 14 ++++++++++++++
 4 files changed, 53 insertions(+), 12 deletions(-)
 create mode 100644 tools/binman/test/124_compress_dtb.dts

Applied to u-boot-dm, thanks!