please revert "Revert "media: staging: atomisp: Remove driver""

[Christoph Hellwig]

Hi Mauro and Greg,

the commit mentioned in the subject (commit id ad85094b293e in
linux-next) contains the grave offense of adding a new set_fs address
space override in "new" code.  It also doesn't have an Ack from Greg
despite showing up in drives/staging, which looks very suspicious.

Please don't just add crap like this back if it doesn't pass the
most basic sanity tests.