Added half the original ec2_validate tests.
Added half the original ec2_validate tests.

Change-Id: Ia828f7d8364c70aa5d6dc6b1e8ae72bf148674c0

hayderimran7/ec2-api,stackforge/ec2-api,MayankGo/ec2-api,hayderimran7/ec2-api,MayankGo/ec2-api,openstack/ec2-api,openstack/ec2-api,stackforge/ec2-api