Add DISK_IOCTL_CTRL_DEINIT ioctl command to disk subsystem. When
disk_access_ioctl() is called with this command, the disk will be
de-initialized. After this IOCTL completes, the disk can safely be
reinitialized.
Fixes#60628
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>