qcacmn: Add APIs to configure Active BPF Mode

Active Mode Berkeley Packet Filter (Active BPF) is a new feature that
allows firmware to apply BPF even while the Apps processor is active.
There are 3 modes:
 * Disabled: do not apply BPF in active mode
 * Enabled: apply BPF to all packets in active mode
 * Adaptive: apply BPF up to some threshold to avoid performance impact

Add WMI APIs and related logic to support configuration of Active BPF
Mode.

Change-Id: I8c0778b3fa73d148422aa103b0fc0950433fec95
CRs-Fixed: 1111400
3 files changed