Kakute F7 Mini

[Dronotique]

Implement flash memory option for Mini version of the Kakute F7 that doesn't have SD Card

[khancyr]

Hello,
thanks for you contribution. Could you rework your pull request according to our commit rules ? (http://ardupilot.org/dev/docs/submitting-patches-back-to-master.html)
Main points are :

• you should split change on different commits for different directory (you can use the usefull ./Tools/gittools/git-subsystems-split script to do it)
• you should change your git tool to not touch the line ending (or default to linux), as you reindent the full files for one line change.

[bys1123]

This will fix #11380

[Dronotique]

I created a new Pull request : #11452
Sorry, I'm starting with Github and Ardupilot development but I really want to collaborate...