CHANGELOG: update for PR #228

Signed-off-by: xuejun-xj <jiyunxue@linux.alibaba.com>

Author: xuejun-xj

CHANGELOG.md

@@ -4,6 +4,8 @@
 - [[#230](https://github.com/rust-vmm/kvm-ioctls/pull/230)] Added
   `check_extension_raw` method to use raw integer values instead
   of `Cap` enum.
+- [[#228](https://github.com/rust-vmm/kvm-ioctls/pull/228)] arm64: add
+support for vCPU SVE feature.
 
 # v0.14.0