qcacmn: Initialize tdls peer sta_id

TDLS sta_id check logic has changed, the value zero is valid, so
initialize the tdls peer sta_id as 0xff, otherwise add tdls peer
won't happen.

Change-Id: I805e4abdec8806f649d15da4f02980de9ffdc0ea
CRs-Fixed: 2263523
1 file changed