Add struct `fanotify_event_info_fid`

[rawhuul]

Host triplet: x86_64-unknown-linux-gnu

API struct is as follows:

struct fanotify_event_info_fid {
  struct fanotify_event_info_header hdr;
  __kernel_fsid_t fsid;
  unsigned char file_handle[0];
};

Man page for more info: https://man7.org/linux/man-pages/man7/fanotify.7.html

Source link: https://github.com/torvalds/linux/blob/dccb07f2914cdab2ac3a5b6c98406f765acab803/include/uapi/linux/fanotify.h#L166