fuse-uring: drop kernel-doc notation for a comment

fuse-uring: drop kernel-doc notation for a comment

Use regular C comment syntax for a non-kernel-doc comment to avoid
a kernel-doc warning:

Warning: fs/fuse/dev_uring_i.h:104 This comment starts with '/**', but
 isn't a kernel-doc comment.
 * Describes if uring is for communication and holds alls the data needed

Binary build output is the same before and after this change.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>