[IOT-1361][Android]Using netlink for get ipaddr instead of ioctl

[IOT-1361][Android]Using netlink for get ipaddr instead of ioctl

Using netlink to support getting ipv6 address in CAGetNetworkInfo()
Remove ioctl code and using netlink.

Change-Id: I94dd5bebd2f8dde95cb589e4f64a44c2a1a428f1
https://jira.iotivity.org/browse/IOT-1361
Signed-off-by: bg.chun <bg.chun@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/12879
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Larry Sachs <larry.j.sachs@intel.com>
Reviewed-by: Dave Thaler <dthaler@microsoft.com>
Reviewed-by: Rick Bell <richard.s.bell@intel.com>
Reviewed-by: Ashok Babu Channa <ashok.channa@samsung.com>