wma_send_peer_assoc() calls wma_unified_peer_state_update() which
always sets the peer state as AUTH irrespective of peer state.
Remove wma_unified_peer_state_update() from wma_send_peer_assoc()
to handle peer state.
Change-Id: I4a887acbc8018653c34b927636cce7cc05323838
CRs-Fixed: 2888808