ioctls/snd: include ioctls from <sound/compress_offload.h>
ioctls/videodev2: add VIDIOC_EXPBUF
ioctls/vt: add TIOCGPKT, TIOCGPTLCK, TIOCGEXCL

Add a few more ioctls introduced in upstream linux commit c6298038 ("tty,
ioctls -- Add new ioctl definitions for tty flags fetching").
syscalls/inotify_add_watch: enumerate known mask bits