Clear the peer-level tid-to-link mapping and set
direction to invalid if-
1) Host receives updated T2LM info through
critical update.
2) There are two T2LM elements received in beacons
and mapping switch time expires for first mapping.
Apply the second mapping.
3) There is a single T2LM element and its mapping
switch time expires. Apply default mapping.
Also, initialize peer-level mapping structure
when a new peer is created.
Change-Id: I1d06ec5f2f5aa398724213a3be08b6588f78c9b0
CRs-Fixed: 3435329
a11201af17