Update and fix project paths.

[bperseghetti]

Not sure if these are pulling in the power from the other project or if they need to be renamed from _oflo to _f9p.

[bperseghetti]

Either way I know they are definitely no longer spinali_add-on_optical_flow

mind taking a look @igalloway and seeing if these should actually be pointing to _f9p or are rightly pointing to other existing _oflo project.

[igalloway]

Strange - the file
[kicad/spinali_mcxn_t1_f9p/board-to-board.kicad_sch]
in the f9p project directory, is mentioning the -oflo board.

I'm not sure how to check this. I suppose looking at the kicad project to see if this actual file is used would be a place to start.
I'll try to investigate tomorrow.