[Doc Request] Advanced RK1 firmware update process

[mrodriguez3313]

Key things to put in video:

• Show what the barcode looks like and what the board looks like inside
• How to setup RK1 so that it can be recognized by windows (download prereqs)
• How to put Blox into boot mode
• How to run RKDevTool
• Plug in blox and show light sequence. Highlight the fact that this should take about 30 minutes and to be patient. Show light blue/cyan lights indicating its ready