Changes required are the following:
• update the caravel footprint to use a footprint for the breakout board (or install optional headers)
• remote the TMUX for programming the flash. we will program the flash through the hk port on caravel
• swap the FTDI part for an MCP part (2221A). the FTDI part is still showing unavailable
• correct the signal conflicts for the serial IO (5 & 6) - they were interfering with the hk port they way they are connected now.
• we may want to add a jumper for connecting vccd1 to 1v8