Add changelog Agent 1.25.0
# Changelog
+## 1.25.0 -dev
+* Feature - Add Nvidia GPU support for p2 and p3 instances
+* Feature - Introduce `ECS_DISABLE_DOCKER_HEALTH_CHECK` to make docker health check configurable [#1624](https://github.com/aws/amazon-ecs-agent/pull/1624)
+
## 1.24.0
* Feature - Configurable poll duration for container stats [@jcbowman](https://github.com/jcbowman) [#1646](https://github.com/aws/amazon-ecs-agent/pull/1646)
* Feature - Add support to remove containers and images that are not part of ECS tasks [#1752](https://github.com/aws/amazon-ecs-agent/pull/1752)
