[PATCH] audit inode for all xattr syscalls

Collect inode info for the remaining xattr syscalls that operate on a file
descriptor. These don't call a path_lookup variant, so they aren't covered by
the general audit hook.

Signed-off-by: Amy Griffis <amy.griffis@hp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>