security: add flags to rename hooks

Add flags to security_path_rename() and security_inode_rename() hooks.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>

diff --cc fs/cachefiles/namei.c
Simple merge

diff --cc fs/namei.c
Simple merge

diff --cc include/linux/security.h
Simple merge

diff --cc security/security.c
Simple merge