Wifi: IP Address Allocation in EAPOL-Key Frames

Implementation of Wi-Fi P2P Technical Specification v1.7 - Section  4.2.8
"IP Address Allocation in EAPOL-Key Frames (4-Way Handshake)".

Changes includes,
1. API to configure the IP addresses in supplicant for P2P GO to
provide the IP address to client in EAPOL handshake.
2. Send the received IP address information to framework via
p2p group started event.

Bug: 170056953
Test: Manual - Establish P2P connection & confirmed from sniffer logs
      and logcat logs that IP addresse is allocated via EAPOL exchange.
      Ping works after connection.

Change-Id: I2662fde9ca645aa5e34b21678d1a47cbf26ef3d3