Updated Address max size

Updated Address max size

Max array of size 40 is not adequate for storing address ipv6 address.
Thus increased the value from 40 to 56.

Change-Id: Icd63c11365cefc2576043c87ef54802b5028c971
Signed-off-by: Randeep Singh <randeep.s@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/5411
Reviewed-by: Ashwini  Kumar <k.ashwini@samsung.com>
Reviewed-by: Chul Lee <chuls.lee@samsung.com>
Reviewed-by: Junghyun Oh <junghyun.oh@samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>