[sonic-buildimage]Install python ipaddress (#2681)

* Install ipaddress python package that has deprecated current ipaddr. ipaddress has backport to python2.7

* Install python ipaddress module as required by route_check.py sonic utility. BTW, ipaddress deprecates ipaddr and ipaddress has python2 backport

Signed-off-by: Renuka Manavalan <remanava@microsoft.com>
This commit is contained in:
Renuka Manavalan 2019-03-21 00:07:02 -07:00 committed by lguohan
parent 0a0f5b81bf
commit c3f5756934

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