Revert "staging: media: atomisp: fill properly hmm_bo_type_strings when ION is disabled"

This reverts commit fde46970.

Adding a preprocessor condition is not the best solution to fix this
issue. Let's revert this commit before fixing this problem in a more
appropriate way.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>