qcacld-3.0: Avoid deleting peer on other vdev in case of duplicate MAC

In STA+SAP case if AP1 and STA1 have same MAC, and DUT's STA is
connected to AP1. Now when the STA1 tries to connect with DUT's SAP
peer with same mac is already present the add peer fails, but during
delete peer the DUT STA peer (AP1) is deleted instead of STA1 of
DUT's SAP. This leads to SAP deleting peer of a STA interface and
thus the SAP peer count is out of sync.

Fix is to reject any association req from STA1 if AP1 is connected
to DUT's STA. Also ad vdev check while deleting the peer in wma.

Change-Id: I448226497c7aa3c11cb9097be9c7d57eb4239900
CRs-Fixed: 2723814