Add some documentation for the sandbox block device emulation and fix some issues for the fs test script.

v2: added Acked-by: Simon Glass sjg@chromium.org on patch 1 and 2 added missing commit messages dropped test/fs: replace deprecated "sb" command with "host" - will be replaced by pytest based implementation later

Stefan Brüns (4): Sandbox: document support of block device emulation sandbox: Add "host size" hostfs command for fs test test/fs: strip carriage-return from sandbox output

board/sandbox/README.sandbox | 19 +++++++++++++++++++ cmd/host.c | 8 ++++++++ test/fs/fs-test.sh | 2 +- 3 files changed, 28 insertions(+), 1 deletion(-)