wpa_supplicant(hidl): P2P Iface implementation

Implementation of the methods exposed in the ISupplicantP2pIface hidl
interface. This is a subset of all the P2P control parameters exposed by
wpa_supplicant used by Android framework. So, many of the internal
methods calls are invoked with default values retrieved from
ctrl_iface.c (old socket interface).

Bug: 31497295
Test: Compiles
Change-Id: I5077419fb38e3c5b9162139127caea4487d5777e
4 files changed