[IOT-1361]Fix android X86_64 runtime issues

[IOT-1361]Fix android X86_64 runtime issues

Add missing .h files on ifaddrs.h
and android caipnwmonitor.c for fix runtime issue.

Change-Id: Iec71fa0929b8682fda05a4d0d7cb89351be01d2d
Signed-off-by: bg.chun <bg.chun@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/14537
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Larry Sachs <larry.j.sachs@intel.com>
Reviewed-by: Hyuna Jo <hyuna0213.jo@samsung.com>
Reviewed-by: Phil Coval <philippe.coval@osg.samsung.com>