Fix ICMP code/type in security group rule test

Security group rule with ICMP protocol has type/code fields which
should follow ICMP specification. Remove the ones that are invalid
and add more meaningful type/code values.
    - Echo Request (type 8, code 0)
    - Echo Response (type 0, code 0)
    - Time Exceeded (type 11, code None)

Change-Id: Ia82193eca71f97581e11badd545ac28236f68f85
Closes-bug: #1425328
1 file changed