[PATCH 05/16] tools: Improve comments in signing functions

[Simon Glass]

Add some more comments to explain what is going on in the signing
functions. Fix two repeated typos.

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

 include/image.h    |  2 +-
 tools/fdt_host.h   |  8 ++++
 tools/image-host.c | 98 +++++++++++++++++++++++++++++++++++-----------
 3 files changed, 85 insertions(+), 23 deletions(-)

Applied to u-boot-dm, thanks!