server: start cne service

Connectivity Engine (CnE) provides advanced network selection per socket,
reduced signalling traffic, and increased power savings.
The service implements the interface defined by CNEManager which Android
applications may use.

Change-Id: I9ffd1f5d60f5e9e185ab482a35b3b07f29a4124c

Add Connectivity Engine (CnE) WQE support

Enhanced connectivity features viz. Wifi Quality Estimation.
Supports dual network mode - wifi & mobile simultaneously.
Use QcConnectivityService when CnE is enabled for all CnE features.

Change-Id: I14b02e21515bfc1b5fd2fc4f28e5190fa80f83f8

server: Initialize ConnectivityService on low memory device

Skip initialization of QcConnectivityService and
use ConnectivityService.java for a low memory device

CRs-Fixed: 531430

Change-Id: I2111ec32f6e40ca79b7fc91ec4cef97ac27f3b3a

Update CNE feature values.

Start QcConnectivityServices for the new
application traffic profiling feature too.

Change-Id: I52ae76420ebd098d43fe0663f41ce622a407b90e

connectivity: allow inheritance to subclass

set modifier to protected in order to allow
subclass to use the same data and avoid redefinition.

Change-Id: I2dc688d3e433775cb073ec6faae3981807212cc9

Change visibility of methods

Change the visibility of some methods so that
they are accessible to the child class.

Change-Id: Ie1a45978b42742cac0aaedba29fb2375882c0ae4