Add changelog for 1.8.0

Add changelog

Author: jingxu97

CHANGELOG/CHANGELOG-1.8.md

@@ -0,0 +1,24 @@
+# Release notes for v1.8.0
+
+# Changelog since v1.7.3
+
+## Changes by Kind
+
+### Bug or Regression
+
+- ControllerGetVolume should report abnormal volume condition if volume is not found ([#339](https://github.com/kubernetes-csi/csi-driver-host-path/pull/339), [@zhucan](https://github.com/zhucan))
+
+### Features
+
+- Deprecate node-expand-required and add new expansion options ([#344](https://github.com/kubernetes-csi/csi-driver-host-path/pull/344), [@gnufied](https://github.com/gnufied))
+- Advertise SINGLE_NODE_MULTI_WRITER capability ([#314](https://github.com/kubernetes-csi/csi-driver-host-path/pull/314), [@chrishenzie](https://github.com/chrishenzie))
+## Dependencies
+
+### Added
+_Nothing has changed._
+
+### Changed
+- github.com/container-storage-interface/spec: [v1.4.0 → v1.5.0](https://github.com/container-storage-interface/spec/compare/v1.4.0...v1.5.0)
+
+### Removed
+_Nothing has changed._