iio: mma8452: Fix trigger reference couting
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.293 by commit fb75cc4740d81264cd5bcb0e17d961d018a8be96, it was introduced in version v4.2 by commit ae6d9ce05691bf79694074db7c7da980080548af. For more details please see the references link.