[U-Boot] [PATCH v2 28/28] README: Add instructions for chain-loading U-Boot on jerry

[sjg at google.com]

Add instructions for chromebook_jerry.

Signed-off-by: Simon Glass <sjg at chromium.org>
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Changes in v2:
- Add instructions and patches for chain-loading into U-Boot on jerry

 doc/README.chromium | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

Applied to u-boot-dm, thanks!