[PATCH 12/20] binman: Add a bintool for fdtgrep

[Simon Glass]

Binman needs the ability to run fdtgrep to prepare devicetree subsets
for use by SPL and TPL. Add a new bintool in preparation for this.

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

 tools/binman/bintools.rst     |   8 ++
 tools/binman/btool/fdtgrep.py | 137 ++++++++++++++++++++++++++++++++++
 2 files changed, 145 insertions(+)
 create mode 100644 tools/binman/btool/fdtgrep.py

Applied to u-boot-dm, thanks!