qcacld-3.0: Register mon interface using hdd_add_virtual_intf

For packet capture mode, register mon interface through
hdd_add_virtual_intf and delete using hdd_del_virtual_intf.
During register, remove the P2P interface and add it back during
deregister.

Change-Id: I8a9e8fb383f83d1e342d7a8fdd990ae703f9607c
CRs-Fixed: 2448505