fix jffs2 ACLs on big-endian with 16bit mode_t

casting int * to mode_t * is not a good thing - on a *lot* of big-endian
architectures mode_t happens to be smaller than int and there it breaks
quite spectaculary...

Fucked-up-by: commit cfc8dc6f6f69ede939e09c2af06a01adee577285
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc fs/jffs2/acl.c
Simple merge

diff --cc fs/jffs2/acl.h
Simple merge

diff --cc fs/jffs2/fs.c
Simple merge

diff --cc fs/jffs2/os-linux.h
Simple merge