filename_lookup(): audit_inode() argument is always 0

We hadn't been passing LOOKUP_PARENT in flags to that thing
since filename_parentat() had been split off back in 2015.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/namei.c b/fs/namei.c
index 209c51a..83e5fb3 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2350,7 +2350,7 @@ int filename_lookup(int dfd, struct filename *name, unsigned flags,
 		retval = path_lookupat(&nd, flags | LOOKUP_REVAL, path);
 
 	if (likely(!retval))
-		audit_inode(name, path->dentry, flags & LOOKUP_PARENT);
+		audit_inode(name, path->dentry, 0);
 	restore_nameidata();
 	putname(name);
 	return retval;