GSD-2021-1000192 iio: core: fix ioctl handlers removal

iio: core: fix ioctl handlers removal 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 v5.12.5 by commit ab6c935ba3a04317632f3b8b68675bdbaf395303...