authsae: delete the plink_timer when peer is deleted

Signed-off-by: Emanuel Taube <emanuel.taube@gmail.com>
authsae: compare frame_control only to the type and stype

don't compare against the frame control flags.
fixes: "got unexpected frame" behavior for
retransmitted frames. (retry flag == 1)

Signed-off-by: Emanuel Taube <emanuel.taube@gmail.com>