Update Amazon-Linux Packaging to use golang >= 1.7
Update Amazon-Linux Packaging to use golang >= 1.7

Signed-off-by: Vinothkumar Siddharth <f72bb2badb3954adb5673e5aaadaf306b9d7b25e@amazon.com>

aws/amazon-ecs-agent,aws/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-init,aws/amazon-ecs-init,rjschwei/amazon-ecs-init,aws/amazon-ecs-agent,aws/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,rjschwei/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-agent