Bluetooth: Add support for notifying of BR/EDR inquiry results

This allows to notify application of inquiry results.

> HCI Event: Extended Inquiry Result (0x2f) plen 255
        Num responses: 1
        Address: C4:43:8F:A3:4D:83 (LG Electronics)
        Page scan repetition mode: R1 (0x01)
        Page period mode: P0 (0x00)
        Class: 0x5a020c
        ...
        Clock offset: 0x73e8
        RSSI: -66 dBm (0xbe)
        Name (complete): Nexus 5

> HCI Event: Extended Inquiry Result (0x2f) plen 255
        Num responses: 1
        Address: F0:79:59:03:6B:30 (ASUSTek COMPUTER INC.)
        Page scan repetition mode: R1 (0x01)
        Page period mode: P0 (0x00)
        Class: 0x280424
        ....
        Clock offset: 0x47d5
        RSSI: -88 dBm (0xa8)

Change-Id: I36215a7139ae49c50ef71a8b647204bf5063cd13
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>