[PATCH 16/17] dm: Add documentation for host command and implementation

[Simon Glass]

Document the 'host' command and also the internals of how it is
implemented.

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

 doc/arch/index.rst                 |   2 +-
 doc/arch/sandbox/block_impl.rst    |  39 ++++++++++
 doc/arch/sandbox/index.rst         |  12 +++
 doc/arch/{ => sandbox}/sandbox.rst |   9 ++-
 doc/usage/cmd/host.rst             | 116 +++++++++++++++++++++++++++++
 doc/usage/index.rst                |   1 +
 6 files changed, 175 insertions(+), 4 deletions(-)
 create mode 100644 doc/arch/sandbox/block_impl.rst
 create mode 100644 doc/arch/sandbox/index.rst
 rename doc/arch/{ => sandbox}/sandbox.rst (98%)
 create mode 100644 doc/usage/cmd/host.rst

Applied to u-boot-dm, thanks!