Add documentation about the cheap clone based on the Cypress
chip. The documentation has schematics data, and throughtput
mesures.
Change-Id: I51bf19ff9229565e178dd4c1231682bd9b4b7a8b
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reviewed-on: http://openocd.zylin.com/1520
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>