qcacld-3.0: wma_send_peer_assoc() sets incorrect peer state

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