em100: Add ability to read back em100 into a file

Add an option to read from the em100 ("upload") and dump
the contents into a file.

Change-Id: Id426ecef589494131868acc4eb170433fdc00fc0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/17737
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed