Fix invalid port range in security group rule create

An earlier commit introduced a change that creates security groups. In
the rules for tcp and udp, ports 1-65536 are allowed. This is
incorrect, it should be 1-65535.

This patch corrects this error.

Closes-Bug: #1264635
Change-Id: I83a7471ebf6d3d3bfeff6b16a051880d876370b1