cmake: pristine.cmake requires SOURCE_DIR and BINARY_DIR as arguments

Calling cmake/pristine.cmake now requires SOURCE_DIR and BINARY_DIR as
arguments.

This ensures that pristine.cmake can evaluate if pristine is requested
on in-source builds, and bail out in such case with an error message.

All uses of `pristine.cmake` has been updated to use the new arguments.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>