acceleromoeter: up/down reversed

Using monitor-sensor one can see that bottom-up and normal are reversed (while right-up and left-up are correct). I can fix that up in userspace but saw that @martin.kepplinger has patches for exporting the mount matrix to userspace upstream which it seems we're not using downstream and we also have no mount matrix in DT.

@martin.kepplinger am i missing something or do you intend to backport to 5.3?