When auth failure occures, hostapd will issue BSS stop
command, resulting in BSS peer deleted. After that, auth
frame may still get received, and SAP callback may still
access BSS peer object for remote peer creation, which
results in an assertion.
Add more check points to make sure SAP callback is
handling the peer object addition correctly based on
different status of SAP state machine.
Change-Id: Icdb7ae2db018f16cb60878bda8bab1e791667cba
CRs-Fixed: 2179494
a8637bb1b6