Fix a bidirectional UDS connect check typo

The 54e70ec5eb090193b03e69d551fa6771a5a217c4 commit introduced a
bidirectional check that should have checked for mutual WRITE access
between two labels. Due to a typo the second check was incorrect.

Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com>

diff --cc security/smack/smack_lsm.c
Simple merge