Documentation: Add information about patches from other git repos

This is more tribal knowledge that I don't think I've seen written down
anywhere else.  It's not a huge issue, but when looking through the git
log, it helps to be able to differentiate the information from the old
gerrit with the information from the new one.

Change-Id: I7993bda1e9aab79dc26940aaba9ddc52382ed0df
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12804
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions